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<?php
set_time_limit(0);
class Jo_Dir {
    public $__dirs = array();
    public function __construct($path) {
        if (!is_readable($path)) {
            throw new Exception("path not found {$path}");
        }
        $this->__dirs[0] = $path;
    }
    protected function _file($file)
    {}
    protected function _dir($dir)
    {}
    public function run() {
        $i = 0;
        while (true) {
            if (!isset($this->__dirs[$i])) {
                break;
           }
            $this->_fetch($i);
            $i += 1;
        }
       
        for ($i = count($this->__dirs) - 1;


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PHPµÄÈÕÆÚʱ¼äº¯Êýdate()

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echo date('Y-m-j');
2007-02-6
echo date('y-n-j');
07-2-6
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echo date('Y-M-j');
2007-Feb-6
echo date('Y-m-d');
2007-02-06
´óдM±íʾÔ·ݵÄ3¸öËõд×Ö·û£¬¶øÐ¡Ð´mÔò±íÊ¾Ô ......

PHPÔÓ¼Ç

 preg_replace -- Ö´ÐÐÕýÔò±í´ïʽµÄËÑË÷ºÍÌæ»»
array_push --  ½«Ò»¸ö»ò¶à¸öµ¥ÔªÑ¹ÈëÊý×éµÄĩ⣨ÈëÕ»£©
preg_match -- ½øÐÐÕýÔò±í´ïʽƥÅä
exif_imagetype($file) ---ͼÏñÀàÐÍ£»
echo "<SCRIPT LANGUAGE='JavaScript'>alert('µÃµ½');history.back();</SCRIPT>";
exit;
date_defaul ......

PHPÖеÄereg()Óëeregi()º¯ÊýµÄ²»Í¬


ereg()
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Óï·¨: int ereg(string pattern, string string, array [regs]);
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ajax¡¢jquery sortable¡¢phpʵÏÖÄܼÇÒäµÄ¶¯Ì¬¹¤¾ßÀ¸

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phpͼƬÉÏ´«

 <?php
if(empty($_GET[submit]))
{
?>
<form enctype="multipart/form-data" action="<?php $_SERVER['PHP_SELF']?>?submit=1" method="post">
<input name="filename" type="file">
<input type="submit" value="È·¶¨ÉÏ´«">
</form>
<?php
}
else{
   ......
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