php 图片压缩处理

时间：2023-03-08 19:36:43
<?php

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']['tmp_name'];

    if ( $_clean['shopId']!='' && $_clean['userId']!='' ) {

        $_info['state'] = ;

        $_info['info'] = '';

        $max_file_size=;  //大小500kb

        if($max_file_size <$oldpic["size"]){

            $_info['state'] = ;

            $_info['info'] = '文件太大';

            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 >  ) {

                    $_info['state'] = ;

                    $_info['info'] = '您已经评论过';

                    echo _json($_info);

                    die;

                    }else{

                        $width = ;

                        $height = ;

                        header('Content-Type: image/jpeg,image/png,image/gif');

                        //获取到图片的宽和高

                        list($width_orig, $height_orig) = getimagesize($oldpic);

                        $ratio_orig = $width_orig/$height_orig;

                        //算比例

                        if ($width/$height > $ratio_orig) {

                           $width = $height*$ratio_orig;

                        } else {

                           $height = $width/$ratio_orig;

                        }

                        //创建

                        $image_p = imagecreatetruecolor($width, $height);

                        $image = imagecreatefrompng($oldpic);

                        imagecopyresampled($image_p, $image, , , , , $width, $height, $width_orig, $height_orig);

                        $pic = date('YmdHis').rand(,).'.'.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'] = ;

        $_data['info'] = '参数有误！';

    }

    $_info['data'] = $_data;

    echo _json($_info);

//请勿删除以下内容   以后备用

//    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'];

//    //上传后的名称

//    $newpic = date('YmdHis').rand(1000,9999).$oldpic;

//

//    if ( $_clean['shopId']!='' && $_clean['userId']!='' ) {

//

//        $_info['state'] = 0;

//        $_info['info'] = '';

//        $max_file_size=500000;  //大小500kb

//        if($max_file_size <$oldpic["size"]){

//            $_info['state'] = 2;

//            $_info['info'] = '文件太大';

//            echo _json($_info);

//            die;

//            }

//            //接收文件目录

//            $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'] = '参数有误！';

////    }

//

//    $_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 = 200;

//        $height = 200;

//        header('Content-Type: image/jpeg,image/png,image/gif');

//        //获取到图片的宽和高

//        list($width_orig, $height_orig) = getimagesize($_absolutePath);

//        $ratio_orig = $width_orig/$height_orig;

//        //算比例

//        if ($width/$height > $ratio_orig) {

//            $width = $height*$ratio_orig;

//        } else {

//            $height = $width/$ratio_orig;

//        }

//        //创建

//        $image_p = imagecreatetruecolor($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 , 100);

//    }

?>

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