封装一些常用的函数。数据类型条件的判断，如判断身份是函数、字符串、数字、关联数组、某个值是否存在、是否是POST请求、是否是GET请求、是否是AJAX异步请求、字符串验证判断、是否是SSL协议、获取文件扩展名、获取客户端IP地址、返回毫秒、返回微秒、字符串分割为数组、生成随机字符串、字符串截取、输入过滤、获取数组的维度、数组排序、分页功能、多级列表相关、发生HTTP状态、文章发布时间、文件读取、变量值浏览器友好输出、强制下载文件等。
更多的请看我的gitee链接: https://gitee.com/fang_wen_feng/my_php_plugCode/blob/phpcode/phpCode/public_functions.php
<?php
/*** 一些类型条件判断 start ***/
/**
* 获取数据类型
* @param $var
* @return string
*/
function get_type($var)
{
if (is_array($var)) return "array";
if (is_bool($var)) return "boolean";
if (is_callable($var)) return "function reference";
if (is_float($var)) return "float";
if (is_int($var)) return "integer";
if (is_null($var)) return "NULL";
if (is_numeric($var)) return "numeric";
if (is_object($var)) return "object";
if (is_resource($var)) return "resource";
if (is_string($var)) return "string";
return "unknown type";
}
/**
* 判断是否是函数
* @param $argument
* @return bool
*/
function is_function($argument)
{
return isset($argument) && is_callable($argument);
}
/**
* 判断是否是关联数组
* @param $arr
* @return bool
*/
function is_assoc($arr)
{
return array_keys($arr) !== range(0, count($arr) - 1);
}
/**
* 判断是否是数字
* @param $value
* @return bool
*/
function is_number($value)
{
return gettype($value) === "integer" || gettype($value) === "double" ? true : false;
}
/**
* 判断是否存在
* @param $var
* @param array $opt 这里的值代表了不存在的意思
* @return bool
*/
function is_exist($var, $opt = array("", null, false))
{
isset($var) || ($var = false);
return !in_array($var, $opt, true);
}
/**
* 是否是POST请求
* @return bool
*/
function is_post()
{
return strtolower($_SERVER["REQUEST_METHOD"]) == 'post';
}
/**
* 是否是GET请求
* @return bool
*/
function is_get()
{
return strtolower($_SERVER["REQUEST_METHOD"]) == 'get';
}
/**
* 是否是AJAX异步请求
* @return bool
*/
function is_ajax()
{
return isset($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest';
}
/**
* 必须是字母
* @param $str
* @return false|int
*/
function is_alp($str)
{
return preg_match('/^[a-zA-Z]+$/', $str);
}
/**
* 验证必须是汉字
* @param $str
* @param string $encoding
* @return false|int
*/
function is_chs($str, $encoding = 'utf-8')
{
return strtolower($encoding) === 'utf-8' ? preg_match('/^[\x{4e00}-\x{9fa5}]+$/u', $str) : preg_match("/^[\x7f-\xff]+$/", $str);
}
/**
* 必须是数字
* @param $str
* @return false|int
*/
function is_num($str)
{
return preg_match('/^[0-9]+$/', $str);
}
/**
* 必须是字母、数字、横线、下划线
* @param $str
* @return false|int
*/
function is_ald($str)
{
return preg_match("/^[\-_—a-zA-Z0-9]+$/", $str);
}
/**
* 必须是汉字、字母
* @param $str
* @param string $encoding
* @param string $add_preg 额外添加的匹配字符
* @return false|int
*/
function is_chsAlpha($str, $encoding = 'utf-8', $add_preg = '')
{
return strtolower($encoding) === 'utf-8' ? preg_match('/^[a-zA-Z' . $add_preg . '\x{4e00}-\x{9fa5}]+$/u', $str) : preg_match("/^[a-zA-Z" . $add_preg . "\x7f-\xff]+$/", $str);
}
/**
* 必须是汉字、字母和数字
* @param $str
* @param string $encoding
* @param string $add_preg 额外添加的匹配字符
* @return false|int
*/
function is_chsAlphaNum($str, $encoding = 'utf-8', $add_preg = '')
{
return strtolower($encoding) === 'utf-8' ? preg_match('/^[a-zA-Z0-9' . $add_preg . '\x{4e00}-\x{9fa5}]+$/u', $str) : preg_match("/^[a-zA-Z0-9" . $add_preg . "\x7f-\xff]+$/", $str);
}
/**
* 必须是汉字、字母、数字和下划线_及破折号-
* @param $str
* @param string $encoding
* @param string $add_preg 额外添加的匹配字符
* @return false|int
*/
function is_chsDash($str, $encoding = 'utf-8', $add_preg = '')
{
return strtolower($encoding) === 'utf-8' ? preg_match('/^[\-_—a-zA-Z0-9' . $add_preg . '\x{4e00}-\x{9fa5}]+$/u', $str) : preg_match("/^[\-_—a-zA-Z0-9" . $add_preg . "\x7f-\xff]+$/", $str);
}
/**
* 必须是电话号码（支持手机号码，3-4位区号，7-8位直播号码，1－4位分机号）
* @param $str
* @return false|int
*/
function is_phone($str)
{
return preg_match('/((\d{11})|^((\d{7,8})|(\d{4}|\d{3})-(\d{7,8})|(\d{4}|\d{3})-(\d{7,8})-(\d{4}|\d{3}|\d{2}|\d{1})|(\d{7,8})-(\d{4}|\d{3}|\d{2}|\d{1}))$)/', $str);
}
/**
* 是否是日期
* @param string $str
* @param string $format
* @return bool
*/
function is_date($str = '', $format = "Y-m-d")
{
$search = ["Y", "m", "d", "H", "i", "s"];
$replace = ["[0-9]{4}", "[0-9]{2}", "[0-9]{2}", "[0-9]{2}", "[0-9]{2}", "[0-9]{2}"];
$format = str_replace($search, $replace, $format);
return !!preg_match("/^$format$/i", $str);
}
/**
* 是否是日期时间
* @param string $str
* @param string $format
* @return bool
*/
function is_datetime($str = '', $format = "Y-m-d H:i:s")
{
return is_date($str, $format);
}
/**
* 判断是否SSL协议
* @return boolean
*/
function is_ssl()
{
if (isset($_SERVER['HTTPS']) && ('1' == $_SERVER['HTTPS'] || 'on' == strtolower($_SERVER['HTTPS']))) {
return true;
} elseif (isset($_SERVER['SERVER_PORT']) && ('443' == $_SERVER['SERVER_PORT'])) {
return true;
}
return false;
}
/**
* 必须是邮箱地址
* @param $str
* @return false|int
*/
function is_email($str)
{
return preg_match('/^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/', $str);
}
/**
* 是否是字符串
* @param string|int|double $str
* @return bool
*/
function y_string($str = '')
{
return !in_array($str, array('', null, false), true) && (is_string($str) || is_numeric($str));
}
/*** 一些类型条件判断 end ***/
/*** [变量|字符串|数组]相关处理 start ***/
/**
* 获取变量值
* @return bool|*
*/
function get_vars(){
$args = func_get_args();
$var = false;
foreach ($args as $arg) {
if(is_exist($arg)){
$var = $arg;
break;
}
}
return $var;
}
/**
* 获取文件扩展名
* @param string $file
* @return mixed
*/
function get_extension($file)
{
return end(explode('.', $file));
}
/**
* 获取客户端IP地址
* @param integer $type 返回类型 0 返回IP地址 1 返回IPV4地址数字
* @return mixed
*/
function get_client_ip($type = 0)
{
$type = $type ? 1 : 0;
static $ip = NULL;
if ($ip !== NULL) return $ip[$type];
if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {
$arr = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']);
$pos = array_search('unknown', $arr);
if (false !== $pos) unset($arr[$pos]);
$ip = trim($arr[0]);
} elseif (isset($_SERVER['HTTP_CLIENT_IP'])) {
$ip = $_SERVER['HTTP_CLIENT_IP'];
} elseif (isset($_SERVER['REMOTE_ADDR'])) {
$ip = $_SERVER['REMOTE_ADDR'];
}
// IP地址合法验证
$long = sprintf("%u", ip2long($ip));
$ip = $long ? array($ip, $long) : array('0.0.0.0', 0);
return $ip[$type];
}
/**
* 返回毫秒
* @return float
*/
function m_second(){
$t = strval(microtime());
$l = explode(' ', $t);
$s = $l[1];
$ms = ~~(floatval($l[0]) * 1000);
$v = strval($s) . str_pad(strval($ms), 3, '0', STR_PAD_LEFT);
return (float)$v;
}
/**
* 返回微秒
* @return string
*/
function u_second(){
$t = strval(microtime());
$l = explode(' ', $t);
$s = $l[1];
$us = ~~(floatval($l[0]) * 1000000);
$v = strval($s) . str_pad(strval($us), 6, '0', STR_PAD_LEFT);
return $v;
}
function my_encode64($data){
return rtrim(strtr(base64_encode($data), '+/', '-_'), '=');
}
function my_decode64($data){
return base64_decode(str_pad(strtr($data, '-_', '+/'), strlen($data) % 4, '=', STR_PAD_RIGHT));
}
/**
*把字符串分割为数组(一维数组)
*@$str string 分割的字符串
*@$charset string 字符串编码
*/
function str_cut($str, $charset = 'utf-8')
{
$re['utf-8'] = "/[\x01-\x7f]|[\xc2-\xdf][\x80-\xbf]|[\xe0-\xef][\x80-\xbf]{2}|[\xf0-\xff][\x80-\xbf]{3}/";
$re['gb2312'] = "/[\x01-\x7f]|[\xb0-\xf7][\xa0-\xfe]/";
$re['gbk'] = "/[\x01-\x7f]|[\x81-\xfe][\x40-\xfe]/";
$re['big5'] = "/[\x01-\x7f]|[\x81-\xfe]([\x40-\x7e]|\xa1-\xfe])/";
preg_match_all($re[$charset], $str, $match);
return $match[0];
}
/**
* 返回随机字符串
* @param int $l
* @param string $mode
* @param array $config
* @param string $charset
* @return string
*/
function randomString($l = 5, $mode = "n", $config = array(), $charset = "utf-8")
{
$C = array(
"n" => "0123456789",
"s" => "abcdefghijklmnopqrstuvwxyz",
"S" => "ABCDEFGHIJKLMNOPQRSTUVWXYZ",
"ns" => "0123456789abcdefghijklmnopqrstuvwxyz",
"nS" => "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ",
"sS" => "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ",
"nsS" => "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ",
"hex" => "0123456789abcdef",
"all" => "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_^+*=|,.~!@#",
);
if (is_array($config) && count($config) > 0) {
foreach ($config as $key => $value) {
$C[$key] = str_cut($value, $charset);
}
}
$mode = empty($C[$mode]) ? "n" : $mode;
$str = "";
if (is_array($C[$mode]) && count($C[$mode]) > 0) {
for ($i = 0, $len = count($C[$mode]); $i < $l; $i++) {
$str .= $C[$mode][mt_rand(0, $len - 1)];
}
} else {
for ($i = 0, $len = strlen($C[$mode]); $i < $l; $i++) {
$str .= $C[$mode][mt_rand(0, $len - 1)];
}
}
return $str;
}
/**
* 字符串截取和返回字符串的长度
* @param string $str 要截取的字符串
* @param int $start 字符串截取的初始位置，从0开始
* @param int $length 字符串截取的长度
* @param string $charset 字符串编码
* @param bool $suffix 是否添加后缀
* @param bool $strlen 是否返回字符串的长度(false不返回,true返回)
* @return int|string
*/
function my_substr($str, $start = 0, $length, $charset = 'utf-8', $suffix = true, $strlen = false)
{
$charset || ($charset = 'utf-8');
//正则表达式匹配编码
$re['utf-8'] = "/[\x01-\x7f]|[\xc2-\xdf][\x80-\xbf]|[\xe0-\xef][\x80-\xbf]{2}|[\xf0-\xff][\x80-\xbf]{3}/";
$re['gb2312'] = "/[\x01-\x7f]|[\xb0-\xf7][\xa0-\xfe]/";
$re['gbk'] = "/[\x01-\x7f]|[\x81-\xfe][\x40-\xfe]/";
$re['big5'] = "/[\x01-\x7f]|[\x81-\xfe]([\x40-\x7e]|\xa1-\xfe])/";
//返回字符串长度
if ($strlen) {
if (function_exists('mb_strlen')) {
$count = mb_strlen($str, $charset);
} elseif (function_exists('iconv_strlen')) {
$count = iconv_strlen($str, $charset);
} else {
preg_match_all($re[$charset], $str, $match);
$count = count($match[0]);
}
return $count;
}
//截取字符串
if (function_exists("mb_substr"))
$slice = mb_substr($str, $start, $length, $charset);
elseif (function_exists('iconv_substr')) {
$slice = iconv_substr($str, $start, $length, $charset);
if (false === $slice) {
$slice = '';
}
} else {
preg_match_all($re[$charset], $str, $match);
$slice = join("", array_slice($match[0], $start, $length));
}
//字数不满添加后缀 ...
if ($suffix) {
$count = my_substr($str, $start, $length, $charset, false, true);
if ($count > $length) {
return $slice . '......';
} else {
return $slice;
}
} else {
return $slice;
}
}
/**
* 返回字符串长度
* @param string $str
* @param string $charset
* @return int
*/
function my_strlen($str, $charset = 'utf-8')
{
$charset || ($charset = 'utf-8');
//正则表达式匹配编码
$re['utf-8'] = "/[\x01-\x7f]|[\xc2-\xdf][\x80-\xbf]|[\xe0-\xef][\x80-\xbf]{2}|[\xf0-\xff][\x80-\xbf]{3}/";
$re['gb2312'] = "/[\x01-\x7f]|[\xb0-\xf7][\xa0-\xfe]/";
$re['gbk'] = "/[\x01-\x7f]|[\x81-\xfe][\x40-\xfe]/";
$re['big5'] = "/[\x01-\x7f]|[\x81-\xfe]([\x40-\x7e]|\xa1-\xfe])/";
//返回字符串长度
if (function_exists('mb_strlen')) {
$count = mb_strlen($str, $charset);
} elseif (function_exists('iconv_strlen')) {
$count = iconv_strlen($str, $charset);
} else {
preg_match_all($re[$charset], $str, $match);
$count = count($match[0]);
}
return $count;
}
/**
* 字符串分隔
* @param string $str
* @param int $split_length
* @param string $charset
* @return array|array[]|bool|false|string[]
*/
function my_str_split($str, $split_length = 1, $charset = 'utf-8')
{
if (func_num_args() == 1 && strtolower($charset) === 'utf-8') {
return preg_split('/(?<!^)(?!$)/u', $str);
}
if ($split_length < 1) {
return false;
}
$len = my_strlen($str, $charset);
$arr = array();
for ($i = 0; $i < $len; $i += $split_length) {
$s = my_substr($str, $i, $split_length, $charset, false);
$arr[] = $s;
}
return $arr;
}
/**
* 数据过滤函数
* @param string|array $data 待过滤的字符串或字符串数组
* @param bool $force 为true时忽略get_magic_quotes_gpc
* @param bool $is_htmlspecialchars 为true时，防止被挂马，跨站攻击
* @param bool $regexp 正则匹配转义字符
* @return array|null|string|string[]
*/
function input($data, $force = false, $is_htmlspecialchars = false, $regexp = false)
{
if (is_string($data)) {
$data = trim($is_htmlspecialchars ? htmlspecialchars($data) : $data);
if (($force == true) || (!get_magic_quotes_gpc())) {
$data = addslashes($data); // 防止sql注入
}
if ($regexp) {
if (is_array($regexp)) {
$regexp = join('|', $regexp);
}
$data = preg_replace('/(' . $regexp . ')/', '\\\\$1', $data);
}
return $data;
} elseif (is_array($data)) {
foreach ($data as $key => $value) {
$data[$key] = input($value, $force, $is_htmlspecialchars, $regexp);
}
return $data;
} else {
return $data;
}
}
/**
* 数据还原函数
* @param string|array $data
* @return array|string
*/
function out($data)
{
if (is_string($data)) {
return $data = stripslashes($data);
} elseif (is_array($data)) {
foreach ($data as $key => $value) {
$data[$key] = out($value);
}
return $data;
} else {
return $data;
}
}
/**
* 文本输入
* @param string $str
* @return mixed|string
*/
function text_in($str)
{
$str = strip_tags($str, '<br>');
$str = str_replace(" ", " ", $str);
$str = str_replace("\n", "<br>", $str);
if (!get_magic_quotes_gpc()) {
$str = addslashes($str);
}
return $str;
}
/**
* 文本输出
* @param string $str
* @return mixed|string
*/
function text_out($str)
{
$str = str_replace(" ", " ", $str);
$str = str_replace("<br>", "\n", $str);
$str = stripslashes($str);
return $str;
}
/**
* html代码输入
* @param string $str
* @return null|string|string[]
*/
function html_in($str)
{
$search = array(
"'<script[^>]*?>.*?</script>'si", // 去掉 javascript
"'<iframe[^>]*?>.*?</iframe>'si" // 去掉iframe
);
$replace = array("", "");
$str = @preg_replace($search, $replace, $str);
$str = htmlspecialchars($str);
if (!get_magic_quotes_gpc()) {
$str = addslashes($str);
}
return $str;
}
/**
* html代码输出
* @param string $str
* @return string
*/
function html_out($str)
{
if (function_exists('htmlspecialchars_decode')) {
$str = htmlspecialchars_decode($str);
} else {
$str = html_entity_decode($str);
}
$str = stripslashes($str);
return $str;
}
/**
* 输出html代码
* @param string $str
* @param string|array $del_tagName
* @return null|string|string[]
*/
function out_html($str, $del_tagName = 'script|iframe')
{
if(!empty($del_tagName) && is_string($del_tagName)){
$del_tagName = explode('|',$del_tagName);
}
if(is_array($del_tagName)){
foreach ($del_tagName as $index => $tagName) {
if(!in_array(strtolower($tagName),array('br','hr','input','img','link','meta'))){
$search[] = "/<{$tagName}[^>]*?>.*?<\/{$tagName}>/si";
}else{
$search[] = "/<{$tagName}[^>]*?>/si";
}
$replace[] = "";
}
}else{
$search = array(
"/<script[^>]*?>.*?<\/script>/si", //去掉 javascript
"/<iframe[^>]*?>.*?<\/iframe>/si", //去掉 iframe
);
$replace = array("", "");
}
$str = preg_replace($search, $replace, $str);
if (function_exists('htmlspecialchars_decode')) {
$str = htmlspecialchars_decode($str);
} else {
$str = html_entity_decode($str);
}
$str = stripslashes($str);
return $str;
}
/**
* 使用回调函数进行字符串替换
* @param string|string[] $pattern
* @param string|callable|callable[] $callback
* @param string|string[] $subject
* @param int $limit
* @return mixed|null|string|string[]
*/
function str_replace_callback($pattern = '', $callback = '', $subject = '', $limit = -1){
if (y_string($pattern) && is_callable($callback) && y_string($subject)) {
return preg_replace_callback($pattern, $callback, $subject, $limit);
} elseif (is_array($pattern) && is_array($callback) && y_string($subject)) {
foreach ($pattern as $key => $val) {
is_callable($callback[$key]) && ($subject = preg_replace_callback($val, $callback[$key], $subject, $limit));
}
return $subject;
} else {
$args = func_get_args();
return call_user_func_array('preg_replace_callback', $args);
}
}
/**
* 返回数组的维度
* @$arr array 数组
* @return number 数组的维度
*/
function arrayLevel($arr)
{
$al = array(0);
if (!function_exists('aL')) {
function aL($arr, &$al, $level = 0)
{
if (is_array($arr)) {
$level++;
$al[] = $level;
foreach ($arr as $k => $v) {
aL($v, $al, $level);
}
}
}
}
aL($arr, $al);
return max($al);
}
/**
* 数组排序 使用例如： sortArrByManyField($arr,'id',SORT_DESC,'field2',SORT_ASC)
* @return mixed|null
* @throws Exception
*/
function sortArrByManyField()
{
$args = func_get_args();
if (empty($args)) {
return null;
}
$arr = array_shift($args);
if (!is_array($arr)) {
throw new Exception("第一个参数不为数组");
}
foreach ($args as $key => $field) {
if (is_string($field)) {
$temp = array();
foreach ($arr as $index => $val) {
$temp[$index] = $val[$field];
}
$args[$key] = $temp;
}
}
$args[] = &$arr;//引用值
call_user_func_array('array_multisort', $args);
return array_pop($args);
}
/**
* 设置数组, 如: set_array($arr,'lv1.lv2',$value); set_array($arr,array('lv1','lv2'),$value);
* @param $arr
* @param string $name
* @param string $value
* @param int $index
* @return mixed
*/
function set_array(&$arr, $name = '', $value = '', $index = 0)
{
if ($name && is_array($name)) {
$len = count($name);
if ($len > 0 && $index < $len) {
if (!isset($arr[$name[$index]]) || !is_array($arr[$name[$index]])) {
$arr[$name[$index]] = array();
if ($index == $len - 1) {
$arr[$name[$index]] = $value;
return $arr;
}
}
set_array($arr[$name[$index]], $name, $value, $index + 1);
}
} elseif ($name && is_string($name) && strpos($name, '.') > 0) {
$name = explode('.', $name);
set_array($arr, $name, $value, $index);
} else {
$arr[$name] = $value;
}
}
/**
* 获取数组 如： get_array($arr,'lv1.lv2'); get_array($arr,array('lv1','lv2'));
* @param $arr
* @param $name
* @param int $index
* @return mixed
*/
function get_array(&$arr, $name, $index = 0)
{
if ($name && is_array($name)) {
$len = count($name);
if ($len > 0 && $index < $len) {
if ($index == $len - 1) {
return $arr[$name[$index]];
}
return get_array($arr[$name[$index]], $name, (int)$index + 1);
}
} elseif ($name && is_string($name) && strpos($name, '.') > 0) {
$name = explode('.', $name);
return get_array($arr, $name, $index);
} else {
return $name ? $arr[$name] : $arr;
}
}
/**
* 设置和获取值【获取值如： C('aa.bb')、C()，设置值如：C('aa.bb',$value)、C($array_value)】
* @param string|array $name
* @param string|array $value
* @return array|mixed
*/
function C($name = '', $value = '')
{
static $data = array();
if ($name && is_string($name) && $value) {
//设置值
set_array($data, $name, $value);
} elseif ($name && is_array($name) && empty($value)) {
//批量设置值
foreach ($name as $k => $item) {
$data[$k] = $item;
}
} elseif ($name && is_string($name) && empty($value)) {
//获取值
return get_array($data, $name);
} else {
//获取所有值
return $data;
}
}
/**
* 二维数组查询(单字段查询),返回匹配项的数组（二维数组或者一维数组）
* @param array $lv2_array 要查询的二维数组
* @param string|callable $field 要查询的字段
* @param string $options 查询表达式(=|>|<|>=|<=|<>|regexp|==|!=)
* @param string|int|double $value 查询条件(值)
* @param string $get_field 匹配的列名称(字段名称)，不为空返回一维数组
* @return bool|array
*/
function level2_array_query($lv2_array, $field = '', $options = '==', $value = '', $get_field = '')
{
$options_filter = ['==', '=', '>', '<', '>=', '<=', 'regexp', '!=', '<>'];
if (is_callable($field)) {
foreach ($lv2_array as $index => $item) {
if (in_array($field($lv2_array, $index, $item), [1, true, "1"], true)) {
$new_lv2_array[] = $item;
$get_field && ($lv1_array_field[] = $item[$get_field]);
}
}
return $get_field ? $lv1_array_field : $new_lv2_array;
}
if (arrayLevel($lv2_array) == 2 && $field !== '' && in_array(strtolower($options), $options_filter)) {
foreach ($lv2_array as $index => $item) {
if (strtolower($options) === 'regexp' && preg_match('/' . $value . '/i', $item[$field])) {
$new_lv2_array[] = $item;
$get_field && ($lv1_array_field[] = $item[$get_field]);
} elseif ($options === '>' && is_numeric($value) && $item[$field] > $value) {
$new_lv2_array[] = $item;
$get_field && ($lv1_array_field[] = $item[$get_field]);
} elseif ($options === '<' && is_numeric($value) && $item[$field] < $value) {
$new_lv2_array[] = $item;
$get_field && ($lv1_array_field[] = $item[$get_field]);
} elseif (in_array($options, ['!=', '<>']) && $item[$field] != $value) {
$new_lv2_array[] = $item;
$get_field && ($lv1_array_field[] = $item[$get_field]);
} elseif ($options === '>=' && is_numeric($value) && $item[$field] >= $value) {
$new_lv2_array[] = $item;
$get_field && ($lv1_array_field[] = $item[$get_field]);
} elseif ($options === '<=' && is_numeric($value) && $item[$field] <= $value) {
$new_lv2_array[] = $item;
$get_field && ($lv1_array_field[] = $item[$get_field]);
} else {
if (in_array($options, ['==', '=']) && $item[$field] == $value) {
//存储获取到的匹配项
$new_lv2_array[] = $item;
//存储获取到的匹配项的某个字段
$get_field && ($lv1_array_field[] = $item[$get_field]);
}
}
}
return $get_field ? $lv1_array_field : $new_lv2_array;
}
return false;
}
/**
* 分页数据
* @param $rowCount integer 总条数
* @param $param array 引用传递参数 $request->param();
* @param $g array 引用传递参数 $request->get();
*/
function paging($rowCount, &$param, &$g)
{
($param['page_rows']) or ($param['page_rows'] = 15);
($param['page']) or ($param['page'] = 1);
//当前页数
$g['page'] = intval($param['page']);
//每页的行数
$g['page_rows'] = intval($param['page_rows']);
//总行数
$g['rowCount'] = $rowCount;
//总页数
$g['pageCount'] = ($g['rowCount'] % $g['page_rows'] === 0) ? ($g['rowCount'] / $g['page_rows']) : ~~($g['rowCount'] / $g['page_rows']) + 1;
//上一页
$g['left_page'] = ($g['page'] - 1) > 0 ? $g['page'] - 1 : 1;
//下一页
$g['right_page'] = ($g['page'] + 1) < $g['pageCount'] ? $g['page'] + 1 : $g['pageCount'];
//开始显示第几条
$g['start'] = (($g['page'] - 1) * $g['page_rows'] + 1) > $g['rowCount'] ? $g['rowCount'] : ($g['page'] - 1) * $g['page_rows'] + 1;
//结束显示第几条
$g['end'] = ($g['start'] + $g['page_rows'] - 1) < $g['rowCount'] ? ($g['start'] + $g['page_rows'] - 1) : $g['rowCount'];
//显示的分页数字按钮数量
($param['btn_num']) or ($param['btn_num'] = 5);
$g['btn_num'] = intval($param['btn_num']);
//显示的分页按钮值 [1][2][3][4]...
$min = $g['page'] - (~~($g['btn_num'] / 2)) < 1 ? 1 : $g['page'] - (~~($g['btn_num'] / 2));
($g['btn_num'] % 2 === 0 && $g['page'] + 1 >= $g['pageCount']) and ($min++);
if ($g['page'] + (~~($g['btn_num'] / 2)) > $g['pageCount']) {
$min = $min - ($g['page'] + (~~($g['btn_num'] / 2) - $g['pageCount']));
($min < 1) and ($min = 1);
}
$max = $g['page'] + (~~($g['btn_num'] / 2)) > $g['pageCount'] ? $g['page'] + (~~($g['btn_num'] / 2)) : $g['pageCount'];
for ($i = 0, $j = $min; $i < $g['btn_num']; $i++) {
if ($j > $g['pageCount']) {
break;
}
$g['btn_list'][] = $j;
$j++;
}
}
/*** [变量|字符串|数组]相关处理 end ***/
/*** 分级列表部分 start ***/
$GLOBALS['tree'] = array(
'pid' => 'pid',
'id' => 'id',
'tableName' => 'tree',
);
/**
* 无限级分类树
* @$arr array 传入二维数，里面的一维数组存在父id和id
* @$pid string 父id
* @$di string id
* @return array 返回树型结构的数组（多维数组）
*/
function get_tree($arr)
{
$items = array();
$pid = $GLOBALS['tree']['pid'];
$id = $GLOBALS['tree']['id'];
foreach ($arr as $key => $value) {
$items[$value[$id]] = $value;
}
$tree = array(); //格式化好的树
foreach ($items as $key => $item) {
if (isset($items[$item[$pid]])) {
$items[$item[$pid]]['is_have_child'] = 1; //标记改元素有子元素
$items[$item[$pid]]['child'][] = &$items[$item[$id]];
} else {
$tree[] = &$items[$item[$id]];
}
}
return $tree;
}
/**
* 给树形结构的多维数组添加属性 level,add_str,用于分级列表显示
* @$treeArr array 多维数组（树形结构的多维数组，结合方法 get_tree() ）
* @$lv number 用于记录子元素所在的层级
* @$str1 string
* @$str2 string
*/
function set_level(&$treeArr, $lv = 0, $str1 = ' ', $str2 = ' └ ')
{
foreach ($treeArr as $key => $value) {
if (isset($value['child'])) {
set_level($treeArr[$key]['child'], $lv + 1, $str1, $str2);
}
$treeArr[$key]['level'] = $lv;
$treeArr[$key]['add_str'] = add_str($lv, $str1, $str2);
}
}
/**
* @$new_arr array 引用传入一个数组，用来组成一个新的二维数组(一个有层次的二维数组)
* @$arrTree array 树型结构的数组，多维数组，配合方法 get_tree() 使用
*/
function tree_level(&$new_arr, $arrTree)
{
$pid = $GLOBALS['tree']['pid'];
$id = $GLOBALS['tree']['id'];
foreach ($arrTree as $key => $value) {
if (isset($value['child'])) {
$value_copy = $value;
//$value_copy['level']= get_id_level($value[$id],$data);
unset($value_copy['child']);
$new_arr[] = $value_copy;
unset($value_copy);
tree_level($new_arr, $value['child']);
} else {
//$value['level']= get_id_level($value[$id],$data);
$new_arr[] = $value;
}
}
}
/**
* @$new_arr array 引用传入一个数组，用来组成一个新的二维数组(一个有层次的二维数组,不去除子元素)
* @$arrTree array 树型结构的数组，多维数组，配合方法 get_tree() 使用
*/
function tree_level_all(&$new_arr, $arrTree)
{
$pid = $GLOBALS['tree']['pid'];
$id = $GLOBALS['tree']['id'];
foreach ($arrTree as $key => $value) {
if (isset($value['child'])) {
$new_arr[] = $value;
tree_level_all($new_arr, $value['child']);
} else {
$new_arr[] = $value;
}
}
}
function add_str($lv, $str1 = ' ', $str2 = ' └ ')
{
for ($i = 0, $st = ''; $i < $lv; $i++) {
$st .= $str1;
}
return $lv > 0 ? $st . $str2 : '';
}
/**
* 获取多级列表
* @$id_v string id值，主要给该id值下的所有子元素设置 disabled 属性值为 1
* @$lv number 要显示的列表缩进级别
* @data array 二维数组，里面的一维数组存在父id和id
* @return array 返回有层次的二维数组
*/
function get_level_list($id_v = 1, $lv = 2, $data = '', $str1 = ' ', $str2 = ' └ ')
{
$pid = $GLOBALS['tree']['pid'];
$id = $GLOBALS['tree']['id'];
if (is_array($data)) {
foreach ($data as $key => $value) {
if ($value[$id] == $id_v) {
$table_data = $value;
break;
}
}
unset($key, $value);
}
//生成新的拥有层次的二维数组 ( $new_arr )
$new_arr = array();
$treeArr = get_tree($data);
set_level($treeArr, 0, $str1, $str2);
tree_level_all($new_arr, $treeArr);
//筛选要渲染的元素（下面只显示二级缩进 列表）
foreach ($new_arr as $key => $value) {
if ($value['level'] > $lv) {
unset($new_arr[$key]);
}
}
//获取该元素的子元素 id(type_id)一维数组
if (isset($table_data[$id])) {
foreach ($new_arr as $k => $v) {
if ($v[$id] == $table_data[$id]) {
$treeArr1 = $v;
}
}
tree_level($new_arr1, [$treeArr1]);
$child_arr['c'] = $new_arr1;
foreach ($child_arr['c'] as $key => $value) {
$child_arr['n'][] = $value[$id];
}
isset($child_arr['n']) or ($child_arr['n'] = array());
//给新数组添加属性方便前台模板渲染
foreach ($new_arr as $key => $value) {
$new_arr[$key]['add_str'] = add_str($value['level'], $str1, $str2);
$new_arr[$key]['disabled'] = in_array($value[$id], $child_arr['n']) ? 1 : 0;
}
unset($child_arr);
} else {
foreach ($new_arr as $key => $value) {
$new_arr[$key]['add_str'] = add_str($value['level'], $str1, $str2);
}
}
unset($treeArr, $child_arr, $table_data, $new_arr1);
return $new_arr;
}
/**
* 获取树的路径
* @param array $lv2_array 要查询的数组（二维数组）
* @param array $new_array 存放查到的内容
* @param int $id 要查找的子元素 id 值
* @param string $id_field 查询的数组里面的id字段名称
* @param string $pid_field 查询的数组里面的pid字段名称
* @param bool $init
* @param int $index
* @return array
*/
function get_tree_path($lv2_array, &$new_array, $id = 0, $id_field = 'id', $pid_field = 'pid', $init = true, $index = 1)
{
$index++;
if (is_array($lv2_array) && count($lv2_array) > 0) {
//是否格式化数组
$init && ($lv2_array = reconfig_array($lv2_array, $id_field));
$pid = $lv2_array[$id][$pid_field];
$id = $lv2_array[$id][$id_field];
//把当前的子元素添加入数组
$init && $id && ($new_array[] = $lv2_array[$id]);
if ($pid > 0) {
$lv2_array[$pid] && ($new_array[] = $lv2_array[$pid]);
//只允许 99 次递归，防止内存溢出
($index < 100) && get_tree_path($lv2_array, $new_array, $pid, $id_field, $pid_field, false, $index);
}
}
return count($new_array) > 0 ? array_reverse($new_array,true) : false;
}
/**
* 给多级列表添加字段 block 区块，用与记录下级跟上级之间的关系，更好的处理数据 【1.0】
* @param array $new_lv2_array 引用变量，构建新的数组
* @param array $lv2_array 二维关联数组（比如从数据库读取的数据）
* @param bool $is_reconfig_array 是否整理数组
* @param int $r 递归次数
* @param int $r_max 限制最大递归次数，防止内存溢出奔溃(也可以当做多级列表级别)
*/
function set_tree_block(&$new_lv2_array, $lv2_array, $is_reconfig_array = true, $r = 1, $r_max = 10)
{
error_reporting(5);
$pid = $GLOBALS['tree']['pid'];
$id = $GLOBALS['tree']['id'];
if ($is_reconfig_array === true) {
$items = array();
foreach ($lv2_array as $index => $item) {
$items[$item[$id]] = $item;
}
$new_lv2_array = $items;
}
foreach ($new_lv2_array as $index => $item) {
if ($item[$pid] == 0) {
$new_lv2_array[$index]['block'] = '0,';
} elseif ($item[$pid] > 0 && $new_lv2_array[$item[$pid]] && $new_lv2_array[$item[$pid]]['block']) {
$new_lv2_array[$index]['block'] || ($new_lv2_array[$index]['block'] = $new_lv2_array[$item[$pid]]['block'] . $new_lv2_array[$item[$pid]][$id] . ',');
} else {
continue;
}
}
($r < $r_max) && set_tree_block($new_lv2_array, $lv2_array, false, $r + 1, $r_max);
}
/*** 分级列表部分 end ***/
/**
* 发送HTTP状态
* @param integer $code 状态码
* @return void
*/
function send_http_status($code)
{
static $_status = array(
// Informational 1xx
100 => 'Continue',
101 => 'Switching Protocols',
// Success 2xx
200 => 'OK',
201 => 'Created',
202 => 'Accepted',
203 => 'Non-Authoritative Information',
204 => 'No Content',
205 => 'Reset Content',
206 => 'Partial Content',
// Redirection 3xx
300 => 'Multiple Choices',
301 => 'Moved Permanently',
302 => 'Moved Temporarily ', // 1.1
303 => 'See Other',
304 => 'Not Modified',
305 => 'Use Proxy',
// 306 is deprecated but reserved
307 => 'Temporary Redirect',
// Client Error 4xx
400 => 'Bad Request',
401 => 'Unauthorized',
402 => 'Payment Required',
403 => 'Forbidden',
404 => 'Not Found',
405 => 'Method Not Allowed',
406 => 'Not Acceptable',
407 => 'Proxy Authentication Required',
408 => 'Request Timeout',
409 => 'Conflict',
410 => 'Gone',
411 => 'Length Required',
412 => 'Precondition Failed',
413 => 'Request Entity Too Large',
414 => 'Request-URI Too Long',
415 => 'Unsupported Media Type',
416 => 'Requested Range Not Satisfiable',
417 => 'Expectation Failed',
// Server Error 5xx
500 => 'Internal Server Error',
501 => 'Not Implemented',
502 => 'Bad Gateway',
503 => 'Service Unavailable',
504 => 'Gateway Timeout',
505 => 'HTTP Version Not Supported',
509 => 'Bandwidth Limit Exceeded'
);
if (isset($_status[$code])) {
header('HTTP/1.1 ' . $code . ' ' . $_status[$code]);
// 确保FastCGI模式下正常
header('Status:' . $code . ' ' . $_status[$code]);
}
}
/**
* 解析简单的数据格式的字符串如 aa=value1,bb=value2
* @param string $str
* @param string $cut_str_level1
* @param string $cut_str_level2
* @return array|bool
*/
function my_get_data($str = '', $cut_str_level1 = ',', $cut_str_level2 = '=')
{
if ($str) {
$level1_arr = explode($cut_str_level1, $str);
$data = array();
if (is_array($level1_arr) && count($level1_arr) > 0) {
foreach ($level1_arr as $key => $value) {
$level2_arr = explode($cut_str_level2, $value);
$k = trim($level2_arr[0]);
unset($level2_arr[0]);
$v = join($cut_str_level2, $level2_arr);
$data[$k] = $v;
}
}
return $data;
}
return false;
}
/**
* 生成简单的数据格式的字符串 传入一维关联数组
* @param string|array $data
* @param string $cut_str_level1
* @param string $cut_str_level2
* @return bool|string
*/
function my_set_data($data = '', $cut_str_level1 = ',', $cut_str_level2 = '=')
{
if (is_array($data) || is_object($data)) {
$str = '';
foreach ($data as $key => $value) {
$str .= $key . $cut_str_level2 . $value . $cut_str_level1;
}
$str = trim($str, $cut_str_level1);
return $str;
}
return false;
}
/**
* 计算日期时间，返回时间戳
* @param string|int $start_time 起始时间参数（YYYY-mm-dd HH:ii:ss | 10位数字）
* @param int $year 年数
* @param int $month 月数
* @param int $day 日期数
* @param int $hour 小时数
* @param int $minute 分钟数
* @param int $second 秒钟数
* @return false|float|int|string
*/
function calculate_time($start_time = '', $year = 0, $month = 0, $day = 0, $hour = 0, $minute = 0, $second = 0)
{
$se = 0;
if (in_array($start_time, array('', 0, '0', null, false), true)) {
$t = time();
} elseif (preg_match('/^[0-9]{4}-[0-9]{2}-[0-9]{2} [0-9]{2}:[0-9]{2}:[0-9]{2}$/', $start_time)) {
$t = strtotime($start_time);
} elseif (preg_match('^[0-9]{10}$', strval($start_time))) {
$t = strtotime(intval($start_time));
}
$Y = (int)date('Y', $t);
$m = (int)date('m', $t);
$d = (int)date('d', $t);
$H = (int)date('H', $t);
$i = (int)date('i', $t);
$s = (int)date('s', $t);
if (is_int($year)) {
$Y = $Y + $year;
($Y < 0) && ($Y = 0);
}
if (is_int($month)) {
$m = $m + $month;
if ($m < 0) {
$Y += ~~($m / 12) - 1;
$m = 12 - abs($m % 12); //确认月份
} elseif ($m === 0) {
$Y = $Y - 1;
$m = 12;//确认月份
} elseif ($m > 0) {
$Y += ($m % 12 === 0) ? ~~($m / 12) - 1 : ~~($m / 12);
$m = ($m % 12 === 0) ? 12 - abs($m % 12) : abs($m % 12); //确认月份
}
}
if (is_int($day)) {
$se += $day * 86400;
}
if (is_int($hour)) {
$se += $hour * 3600;
}
if (is_int($minute)) {
$se += $minute * 60;
}
if (is_int($second)) {
$se += $second;
}
$data_time_str = str_pad($Y, 4, '0', STR_PAD_LEFT) . "-" . str_pad($m, 2, '0', STR_PAD_LEFT) . "-$d $H:$i:$s";
$data_time_str = strtotime($data_time_str);
$data_time_str += $se;
return $data_time_str;
}
/**
* 发布时间
* @param string|int $str
* @param string $opt
* @return array|mixed|string
*/
function release_time($str, $opt = "auto"){
$t = time();
$year = 0; $month = 0; $week = 0; $day = 0; $hour = 0; $minute = 0; $second = 0;
if (is_datetime($str)) {
$str = strtotime($str);
}
if (preg_match('/^[0-9]{10}$/', $str . "")) {
$str = intval($str);
}
$difference = $t - $str;
if ($difference > 0) {
$year = ~~($difference / 31536000); //多少年前
$month = ~~($difference / 2592000); //多少个月前
$week = ~~($difference / 604800); //多少周前
$day = ~~($difference / 86400); //多少天前
$hour = ~~($difference / 3600); //多少小时前
$minute = ~~($difference / 60); //多少分钟前
$second = $difference; //多少秒前
}
$data = array(
'year' => $year,
'month' => $month,
'week' => $week,
'day' => $day,
'hour' => $hour,
'minute' => $minute,
'second' => $second,
'Y' => $year,
'm' => $month,
'd' => $day,
'H' => $hour,
'i' => $minute,
's' => $second,
'w' => $week,
'message' => date("Y-m-d H:i:s", $str),
);
$dt = $data['message'];
$auto_opt = preg_match("/^auto_\d+$/i",$opt);
if (in_array($opt, array("year", "Y"))) {
$data['message'] = "{$year}年前";
} elseif (in_array($opt, array("month", "m"))) {
$data['message'] = "{$month}个月前";
} elseif (in_array($opt, array("week", "w"))) {
$data['message'] = "{$week}周前";
} elseif (in_array($opt, array("day", "d"))) {
$data['message'] = "{$day}天前";
} elseif (in_array($opt, array("hour", "H"))) {
$data['message'] = "{$hour}个小时前";
} elseif (in_array($opt, array("minute", "i"))) {
$data['message'] = "{$minute}分钟前";
} elseif (in_array($opt, array("second", "s"))) {
$data['message'] = "{$second}秒前";
} elseif (in_array($opt, array("auto", "auto_Y", "auto_m", "auto_d", "auto_H", "auto_i", "auto_s", "auto_w")) || $auto_opt) {
if ($difference < 60) {
$data['message'] = "{$second}秒前";
($opt === "auto_s") && ($data['message'] = $dt);
}
if ($difference >= 60 && $difference < 3600) {
$data['message'] = "{$minute}分钟前";
($opt === "auto_i") && ($data['message'] = $dt);
}
if ($difference >= 3600 && $difference < 86400) {
$data['message'] = "{$hour}个小时前";
($opt === "auto_H") && ($data['message'] = $dt);
}
if ($difference >= 86400 && $difference < 604800) {
$data['message'] = "{$day}天前";
($opt === "auto_d") && ($data['message'] = $dt);
}
if ($difference >= 604800 && $difference < 2592000) {
$data['message'] = "{$week}周前";
($opt === "auto_w") && ($data['message'] = $dt);
}
if ($difference >= 2592000 && $difference < 31536000) {
$data['message'] = "{$month}个月前";
($opt === "auto_m") && ($data['message'] = $dt);
}
if ($difference > 31536000) {
$data['message'] = "{$year}年前";
($opt === "auto_Y") && ($data['message'] = $dt);
}
if($auto_opt){
$arr = explode('_',$opt);
$arr[1] = intval($arr[1]); //多少秒
($difference >= $arr[1]) && ($data['message'] = $dt); //相差多少秒时，恢复默认值
}
return $data['message'];
}
return $data[$opt] ? $data[$opt] : $data;
}
/**
* 文件读取，返回一维数组
* @param string $file_path
* @param int $start 开始行
* @param int $end 结束行，$end <= 0 时，读到文件末尾
* @param int $len 每行最大读取长度（字节）
* @return array|bool
*/
function file_read($file_path = '', $start = 1, $end = -1, $len = 4096)
{
if (y_string($file_path) && file_exists($file_path)) {
$row = array();
$f = fopen($file_path, 'r');
$line = 1;
if ($f) {
while (!feof($f)) {
$str = rtrim(fgets($f, $len));
if ($line >= $start) {
$str && ($row[] = $str);
}
if ($end > 0 && $line >= $end) {
break;
}
$line++;
}
}
fclose($f);
return $row;
}
return false;
}
/**
* 浏览器友好输出
* @param * $var
* @param boolean $echo
* @param string $label
* @param boolean $strict
* @return string
*/
function my_dump($var, $echo = true, $label = null, $strict = true)
{
$label = ($label === null) ? '' : rtrim($label) . ' ';
if (!$strict) {
if (ini_get('html_errors')) {
$output = print_r($var, true);
$output = '<pre>' . $label . htmlspecialchars($output, ENT_QUOTES) . '</pre>';
} else {
$output = $label . print_r($var, true);
}
} else {
ob_start();
var_dump($var);
$output = ob_get_clean();
if (!extension_loaded('xdebug')) {
$output = preg_replace('/\]\=\>\n(\s+)/m', '] => ', $output);
$output = '<pre>' . $label . htmlspecialchars($output, ENT_QUOTES) . '</pre>';
}
}
if ($echo) {
echo($output);
return null;
} else
return $output;
}
/**
* 获取二维数组里的某个字段的列值（一维数组）
* @param array $array_level2 二维数组及多维数组
* @param string $field
* @param $newarray
*/
function field_array($array_level2, $field = '', &$newarray)
{
if (is_array($array_level2) && arrayLevel($array_level2) > 1) {
foreach ($array_level2 as $key => $value) {
if (isset($value[$field]) && $value[$field] !== '') {
$newarray[] = $value[$field];
}
}
}
}
/**
* @param array $array_level2 二维数组及多维数组
* @param string $index_field 设置某个字段的值为 数组下标
* @return array
*/
function reconfig_array($array_level2 = '', $index_field = 'id')
{
$arr = array();
if (is_array($array_level2) && arrayLevel($array_level2) > 1) {
foreach ($array_level2 as $k => $v) {
$arr[$v[$index_field]] = $v;
}
}
return $arr;
}
/**
* 清除html标签
* @param string $str
* @return null|string|string[]
*/
function del_html_tag($str = '')
{
$preg['tag'] = '/<.+?>/i';
if (!is_array($str) || !is_object($str)) {
$str = preg_replace($preg['tag'], '', $str);
}
return $str;
}
/**
* 清除字符串里面的某些字符
* @param string $str
* @param array $filter
* @return null|string|string[]
*/
function string_filter($str = '', $filter = array(" ", " ", "\r", "\n", "\t"))
{
is_array($filter) && ($preg = join('|', $filter));
return preg_replace("/($preg)/i", '', $str);
}
/**
* 构成文章的上一篇和下一篇的数据
* @param array $lv2_array 二维数组【从数据库中获取的】
* @param array $g
* @param string $id
*/
function detail_prev_next($lv2_array, &$g, $id = 'id')
{
$count = count($lv2_array);
$Last = array(); //上一篇
$Next = array(); //下一篇
foreach ($lv2_array as $key => $item) {
if ($item[$id] == $g[$id]) {
if ($key - 1 >= 0) {
$Last = $lv2_array[$key - 1];
}
if ($key + 1 <= $count) {
$Next = $lv2_array[$key + 1];
}
break;
}
}
$g['last'] = $Last;
$g['next'] = $Next;
}
/**
* @return mixed|string
*/
function get_path_info()
{
if ($_SERVER['REDIRECT_PATH_INFO']) {
return trim($_SERVER['REDIRECT_PATH_INFO'], '/');
} elseif ($_SERVER['PATH_INFO']) {
return trim($_SERVER['PATH_INFO'], '/');
} elseif ($_SERVER['REQUEST_URI']) {
$REQUEST_URI = preg_replace('/\?+.*/i', '', $_SERVER['REQUEST_URI']);
$SCRIPT_NAME = str_replace('/', '\\/', $_SERVER['SCRIPT_NAME']);
$REQUEST_URI = preg_replace('/' . $SCRIPT_NAME . '/i', '', $REQUEST_URI, 1);
return trim($REQUEST_URI, '/');
} else {
return trim(str_replace($_SERVER['SCRIPT_NAME'] . '/', '', $_SERVER['PHP_SELF']), '/');
}
}
/**
* 强制下载文件
* @param string $file 文件路径
* @param string $rename 重命名文件名称
*/
function to_download($file,$rename='')
{
//First, see if the file exists
if (!is_file($file)) {
die("<b>404 File not found!</b>");
}
//Gather relevent info about file
$len = filesize($file);
$filename = basename($file);
//$file_extension = strtolower(substr(strrchr($filename, "."), 1));
$file_extension = strtolower(end(explode('.', $filename)));
//This will set the Content-Type to the appropriate setting for the file
switch ($file_extension) {
case "pdf":
$ctype = "application/pdf";
break;
case "txt":
$ctype = "application/txt";
break;
case "exe":
$ctype = "application/octet-stream";
break;
case "zip":
$ctype = "application/zip";
break;
case "doc":
$ctype = "application/msword";
break;
case "xls":
$ctype = "application/vnd.ms-excel";
break;
case "ppt":
$ctype = "application/vnd.ms-powerpoint";
break;
case "gif":
$ctype = "image/gif";
break;
case "png":
$ctype = "image/png";
break;
case "jpeg":
case "jpg":
$ctype = "image/jpg";
break;
case "mp3":
$ctype = "audio/mpeg";
break;
case "wav":
$ctype = "audio/x-wav";
break;
case "mpeg":
case "mpg":
case "mpe":
$ctype = "video/mpeg";
break;
case "mov":
$ctype = "video/quicktime";
break;
case "avi":
$ctype = "video/x-msvideo";
break;
//The following are for extensions that shouldn't be downloaded (sensitive stuff, like php files)
case "php":
case "htm":
case "html":
//case "txt":
die("<b>Cannot be used for " . $file_extension . " files!</b>");
break;
default:
$ctype = "application/force-download";
}
//Begin writing headers
header("Pragma: public");
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Cache-Control: public");
header("Content-Description: File Transfer");
//Use the switch-generated Content-Type
header("Content-Type: $ctype");
$rename && ($filename = $rename . '.' . $file_extension);
//Force the download
$header = "Content-Disposition: attachment; filename=" . $filename . ";";
header($header);
header("Content-Transfer-Encoding: binary");
header("Content-Length: " . $len);
ob_clean();
flush();
@readfile($file);
exit;
}