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在b.php中有这样一段PHP代码:echo "document.write(88)";?>

function rand_one($numone = array()){$len = sizeof($numone,1);$j = rand(0,$len-1);        return $numone[$j];    }function rand_num($num = array(),$sj = 5){$myWant = array();for($i=0;$i

使用PHP开发应用程序，尤其是网站程序，常常需要生成随机密码，如用户注册生成随机密码，用户重置密码也需要生成一个随机的密码。随机密码也就是一串固定长度的字符串，这里我收集整理了几种生成随机字符串的方法，以供大家参考。方法一：     1、在 33 – 126 中生成一个随机整数，如 35，     2、将 35 转换成对应的ASCII码字符，如 35 对应 #     3、

时间效率对比     1234567891011121314151617181920function getmicrotime(){    list($usec, $sec) = explode(" ",microtime());    return ((floa

$xmlpatch = 'index.xml';$doc = new DOMDocument(); $doc -> formatOutput = true; if($doc -> load($xmlpatch)) { $document = $doc -> documentElement;//获得根节点(root) for($i=1;$i$item=$doc

$xmlpatch = 'index.xml';$_id = '2';$doc = new DOMDocument();$doc -> formatOutput = true;if($doc -> load($xmlpatch)) {$document = $doc -> documentElement;$elm = $document -> getElementsByTa

$xmlpatch = 'index.xml';$doc = new DOMDocument();$doc -> formatOutput = true;if($doc -> load($xmlpatch)) {$document = $doc -> documentElement;$elm = $document -> getElementsByTagName

$xmlpatch = 'index.xml';$doc=new DOMDocument("1.0","utf-8");$doc->formatOutput=true;               $document=$doc->createElement("document");$document=$doc->appendChild($document);$d

$url = "http://res.kumi.cn/templates/kumi/file/2016xiyouji/img/3.png";//$filename = '1.png';function GetImage($url, $filename = "") {if ($url == "") {return false;}if ($filename == "") {

require_once("mysqli.php");$db = new db_mysqli();class PayService{public $db; public function __construct(){$this->db = $GLOBALS['db'];}//随机生成站内测试订单号public function getOr

iconv('utf-8', 'gbk', $data);      改为：iconv('utf-8', 'gbk//IGNORE', $data);

bool setcookie(string $name [, string $value [, int $expire = 0 [, string $path [, string $domain [, bool $secure = false [, bool $httponly = false ]]]]]])bool setcookie(string name,string value

设置 失效时间$endtime = time()-1;setcookie('name','',$endtime);print_r($_COOKIE);

function timeDiff($time){$timeCurrent=time();$timeDiff=abs($timeCurrent-$time);//取时间差的绝对值$second=floor($timeDiff);//相差秒数$minite=floor($timeDiff/60);//相差分钟数$hour=floor($timeDiff/3600);//相差小时数

function changeTimeType($seconds){if ($seconds>3600){$hours = intval($seconds/3600);$minutes = $seconds-3600*$hours;$time = $hours.":".gmstrftime('%M:%S', $minutes);}else{$time = gmstrftim

//生成json数据function make_json_app_response($error = 0, $content='app'){    include_once('cls_json.php');    $json = new JSON;    $time = time();if ($error==1)$res = array('code' => $e

$.getJSON("http://domain/mama/dianzan.php?action=cli&siteid=3&id="+cid+"&jsoncallback=?",function(data){if(data.status==1){location.reload();}else{ return false; } });dianz

function http_status($url){$ch = curl_init();curl_setopt($ch, CURLOPT_URL, $url);curl_setopt($ch, CURLOPT_HEADER, 1);curl_setopt($ch, CURLOPT_NOBODY, 1);curl_setopt($ch, CURLOPT_RETURNTRANSF

例子：function objtoarr($obj){$ret = array();foreach($obj as $key =>$value){if(gettype($value) == 'array' || gettype($value) == 'object'){$ret[$key] = objtoarr($value);}else{$ret[$key] = $v

//删除目录及目录下文件function deldir($path){    //给定的目录不是一个文件夹    if(!is_dir($path)){        return null;    }    $fh = opendir($path);    while(($row = readdir($fh)) !== false){        //过滤掉虚拟

function recursive_mkdir($created_path, $before_path, $mode = 0777) {     $dirs = explode('/' , $created_path);     $count = count($dirs);     for ($i = 0; $i          if (empty($dirs[$i])) co

//递归创建目录function recursive_mkdir($created_path, $before_path, $mode = 0777) {     $dirs = explode('/' , $created_path);     $count = count($dirs);     for ($i = 0; $i          if (empty($dir

//利用远程图片创建新图片

/*.jpg   .jpegarray (size=7)  0 => int 120  1 => int 90  2 => int 2  3 => string 'width="120" height="90"' (length=23)  'bits' => int 8  'channels' => int 3  'mime' => string 'image/

function resizejpg($imgsrc,$imgwidth,$imgheight,$filepath){$arr = getimagesize($imgsrc);$imgWidth = $imgwidth;$imgHeight = $imgheight;if($arr[2]==1){$imgsrc = imagecreatefromgif($imgsrc);

//利用远程gif图片创建新gif图片function resizejpg($imgsrc,$imgwidth,$imgheight,$filepath){$arr = getimagesize($imgsrc);$imgWidth = $imgwidth;$imgHeight = $imgheight;$imgsrc = imagecreatefromgif($imgsr

利用远程png图片创建新png图片function resizepng($imgsrc,$imgwidth,$imgheight,$filepath){$arr = getimagesize($imgsrc);$imgWidth = $imgwidth;$imgHeight = $imgheight;$imgsrc = imagecreatefrompng($imgsr

function resizeimage($imgsrc,$imgwidth,$imgheight,$filepath){$arr = getimagesize($imgsrc);$imgWidth = $imgwidth;$imgHeight = $imgheight;$mime = explode('/',$arr['mime']);$ext = $mime[1];

cookie和session都可以暂时保存在多个页面中使用的变量，但是它们有本质的差别。cookie存放在客户端浏览器中，session保存在服务器上。它们之间的联系是session ID一般保存在cookie中。cookie工作原理当客户访问某个网站时，在PHP中可以使用setcookie函数生成一个cookie，系统经处理把这个cookie发送到客户端并保存在c:Doc