php一些实用的自制方法

function decodeUnicode($str){ ?return preg_replace_callback(‘/\\\\u([0-9a-f]{4})/i‘, ???create_function( ?????‘$matches‘, ?????‘return mb_convert_encoding(pack("H*", $matches[1]), "UTF-8", "UCS-2BE");‘ ???), ???$str);}

function _grab($curl,$postInfo=‘‘,$cookie=‘‘,$referer=‘‘,$userAgent=‘‘){ ????$ch = curl_init(); ??????curl_setopt($ch, CURLOPT_URL, $curl); ??????//不输出头 ????curl_setopt($ch, CURLOPT_HEADER, 0); ???????//以字符串返回获取的信息，不直接输出 ????curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); ????//如果是https链接，不验证证书 ????if(preg_match(‘/https/i‘, $curl)){ ????????curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); ????} ????//POST ????if($postInfo){ ???????curl_setopt($ch,CURLOPT_POST,1); ???????curl_setopt($ch,CURLOPT_POSTFIELDS,$postInfo); ????} ????//加入cookie ????if($cookie){ ????????curl_setopt($ch,CURLOPT_COOKIE,$cookie); ????} ????//模拟来路 ????if($referer){ ????????curl_setopt($ch, CURLOPT_REFERER, $referer); ????} ????//模拟环境 ????if($userAgent){ ????????curl_setopt($ch, CURLOPT_USERAGENT, $userAgent); ????} ????//执行 ????$content = curl_exec($ch); ??????//错误处理 ????if ($content ?=== false) { ????????return "网络请求出错: " . curl_error($ch); ????????exit(); ??????} ??????return $content;}