PHP image Compression Processing

<?phprequire dirname (__file__).'/.. /includes/common.inc.php'; $_clean=Array (); $_info=Array (); $_data=Array (); $_clean['Shopid'] =_check ($_post['Shopid']); $_clean['userId'] =_check ($_post['userId']); $oldpic= $_files['Picfile']['Tmp_name']; if($_clean['Shopid']!="'&& $_clean['userId']!="') {$_info[' State'] =0; $_info['Info'] ="'; $max _file_size=500000;//size 500kb        if($max _file_size < $oldpic ["size"]) {$_info[' State'] =2; $_info['Info'] ='file is too large';            echo _json ($_info);            Die }Else{$_SQL1="SELECT * from tb_easy_comments WHERE user = ' {$_clean[' userId ']} ' and contentId = ' {$_clean[' contentId '} '"; $_RESULT1=_query ($_SQL1); $_row1=_num_rows ($_RESULT1); if($_row1 >0) {$_info[' State'] =0; $_info['Info'] ='you have commented';                    echo _json ($_info);                    Die }Else{$width= $; $height= $; Header ('Content-type:image/jpeg,image/png,image/gif'); //Gets the width and height of the pictureList ($width _orig, $height _orig) =getimagesize ($oldpic); $ratio _orig= $width _orig/$height _orig; //calculation ratio                        if($width/$height >$ratio _orig) {$width= $height *$ratio _orig; } Else{$height= $width/$ratio _orig; }                        //Create$image _p =Imagecreatetruecolor ($width, $height); $image=imagecreatefrompng ($oldpic); Imagecopyresampled ($image _p, $image,0,0,0,0, $width, $height, $width _orig, $height _orig); $pic= Date ('Ymdhis'). Rand ( +,9999).'.'. jpg; Imagejpeg ($image _p,"d:/www/web/php_easyhunt/images/easycommentspic/". $pic, -); $_data['Info'] ="/ http". $_server['server_name'].'/images/easycommentspic/'. $pic; $_info['Data'] =$_data;                    echo _json ($_info); }            }        }Else{$_data[' State'] =5; $_data['Info'] ='wrong parameter! '; } $_info['Data'] =$_data; echo _json ($_info);//do not delete the following after the backup//require dirname (__file__). ' /.. /includes/common.inc.php ';//$_clean = Array ();//$_info = Array ();//$_data = Array ();//$_clean[' shopid '] =_check ($_post[' shopid ']);//$_clean[' userid '] =_check ($_post[' userid ');//    //$oldpic = $_files[' picfile ' [' name '];//    //post-upload name//$newpic = Date (' Ymdhis '). Rand (1000,9999). $oldpic;//    //if ($_clean[' shopid ']!= ' && $_clean[' userId ']!= ') {//    //$_info[' state '] = 0;//$_info[' info '] = ';//$max _file_size=500000; //size 500kb//if ($max _file_size < $oldpic ["size"]) {//$_info[' state '] = 2;//$_info[' info '] = ' file is too large ';//Echo _json ($_info);//Die ;//            }//            //Receive file directory//$target _path = "d:/www/web/php_easyhunt/images/companyimages/"; //if (move_uploaded_file ($_files[' picfile ' [' tmp_name '], $target _path. $newpic)) {//            }//$_data[' info '] = "http://". $_server[' server_name ']. '    /images/companyimages/'. $newpic; //}else{//$_data[' state '] = 5;//$_data[' info '] = ' parameter is wrong! ';////    }//    //$_info[' data ' = $_data;//    //Echo _json ($_info);////$image _p = Imagecreatetruecolor ($width, $height);//$type = substr ($_absolutepath,strrpos ($_absolutepath, '. ') +1); //if ($type = = "JPG" | | $type = = "JPEG" | | $type = = "jpeg") {//$image = Imagecreatefromjpeg ($_absolutepath);//} else if ($type = = "png") {//$image = imagecreatefrompng ($_absolutepath);//} else if ($type = = "gif") {//$image = imagecreatefromgif ($_absolutepath);//        }//////function Scaleimage () {///*$_absolutepath= "http://115.28.233.45/mobile_client". $_path;*///$_absolutepath= "Http://115.28.233.45/mobile_client/imgs/comments/4_220/201412270932136d2fcd32-7764-4081-9ae5-6f85bbfadf71.JPEG";//$width = $;//$height = $;//header (' content-type:image/jpeg,image/png,image/gif ');//        //Gets the width and height of the picture//list ($width _orig, $height _orig) = getimagesize ($_absolutepath);//$ratio _orig = $width _orig/$height _orig;//        //calculation ratio//if ($width/$height > $ratio _orig) {//$width = $height * $ratio _orig;//} else {//$height = $width/$ratio _orig;//        }//        //Create//$image _p = Imagecreatetruecolor ($width, $height);//$type = substr ($_absolutepath,strrpos ($_absolutepath, '. ') +1); //if ($type = = "JPG" | | $type = = "JPEG" | | $type = = "jpeg") {//$image = Imagecreatefromjpeg ($_absolutepath);//} else if ($type = = "png") {//$image = imagecreatefrompng ($_absolutepath);//} else if ($type = = "gif") {//$image = imagecreatefromgif ($_absolutepath);//        }//imagecopyresampled ($image _p, $image, 0, 0, 0, 0, $width, $height, $width _orig, $height _orig);//$pic = "Smalll_". substr ($_absolutepath,strrpos ($_absolutepath, '/') +1);//imagejpeg ($image _p, "imgs/comments/". $pic, +);//    }?>

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PHP image Compression Processing