PHP some practical self-made methods

JSON garbled to Chinese

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);
}

Curl Crawler

Function _grab($curl,$postInfo=‘‘,$cookie=‘‘,$referer=‘‘,$userAgent=‘‘){
     $ch = curl_init();
     Curl_setopt($ch, CURLOPT_URL, $curl);
     / / No output header
     Curl_setopt($ch, CURLOPT_HEADER, 0);
     / / Returns the obtained information as a string, not directly output
     Curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
     / / If it is a https link, do not verify the certificate
     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);
     }
     //Add a cookie
     If($cookie){
         Curl_setopt($ch,CURLOPT_COOKIE,$cookie);
     }
     / / Analog to the road
     If($referer){
         Curl_setopt($ch, CURLOPT_REFERER, $referer);
     }
     / / Simulation environment
     If($userAgent){
         Curl_setopt($ch, CURLOPT_USERAGENT, $userAgent);
     }
     //carried out
     $content = curl_exec($ch);
     / / Error handling
     If ($content === false) {
       Return "Network request error:" . curl_error($ch);
       Exit();
     }
     Return $content;
}

PHP some practical self-made methods