search
Homephp教程php手册PHP生成缩略图的类

PHP生成缩略图的类

Jun 13, 2016 am 10:42 AM
20phpcodeauthorFunctiondategenerateofkind

php代码

 

/** 

* 功能:生成缩略图 

* 作者:phpox 

* 日期:Thu May 17 09:57:05 CST 2007 

*/ 

 

class CreatMiniature  

{  

    //公共变量  

    var $srcFile="";        //原图  

    var $echoType;            //输出图片类型,link--不保存为文件;file--保存为文件  

    var $im="";                //临时变量  

    var $srcW="";            //原图宽  

    var $srcH="";            //原图高  

 

    //设置变量及初始化  

    function SetVar($srcFile,$echoType)  

    {  

        if (!file_exists($srcFile)){  

            echo 源图片文件不存在!;  

            exit();  

        }  

        $this->srcFile=$srcFile;  

        $this->echoType=$echoType;  

 

        $info = "";  

        $data = GetImageSize($this->srcFile,$info);  

        switch ($data[2])   

        {  

         case 1:  

           if(!function_exists("imagecreatefromgif")){  

            echo "你的GD库不能使用GIF格式的图片,请使用Jpeg或PNG格式!返回";  

            exit();  

           }  

           $this->im = ImageCreateFromGIF($this->srcFile);  

           break;  

        case 2:  

          if(!function_exists("imagecreatefromjpeg")){  

           echo "你的GD库不能使用jpeg格式的图片,请使用其它格式的图片!返回";  

           exit();  

          }  

          $this->im = ImageCreateFromJpeg($this->srcFile);      

          break;  

        case 3:  

          $this->im = ImageCreateFromPNG($this->srcFile);      

          break;  

      }  

      $this->srcW=ImageSX($this->im);  

      $this->srcH=ImageSY($this->im);   

    }  

      

    //生成扭曲型缩图  

    function Distortion($toFile,$toW,$toH)  

    {  

        $cImg=$this->CreatImage($this->im,$toW,$toH,0,0,0,0,$this->srcW,$this->srcH);  

        return $this->EchoImage($cImg,$toFile);  

        ImageDestroy($cImg);  

    }  

      

    //生成按比例缩放的缩图  

    function PRorate($toFile,$toW,$toH)  

    {  

        $toWH=$toW/$toH;  

        $srcWH=$this->srcW/$this->srcH;  

        if($toWH

        {  

            $ftoW=$toW;  

            $ftoH=$ftoW*($this->srcH/$this->srcW);  

        }  

        else 

        {  

              $ftoH=$toH;  

              $ftoW=$ftoH*($this->srcW/$this->srcH);  

        }  

        if($this->srcW>$toW||$this->srcH>$toH)  

        {  

            $cImg=$this->CreatImage($this->im,$ftoW,$ftoH,0,0,0,0,$this->srcW,$this->srcH);  

            return $this->EchoImage($cImg,$toFile);  

            ImageDestroy($cImg);  

        }  

        else 

        {  

            $cImg=$this->CreatImage($this->im,$this->srcW,$this->srcH,0,0,0,0,$this->srcW,$this->srcH);  

            return $this->EchoImage($cImg,$toFile);  

            ImageDestroy($cImg);  

        }  

    }  

      

    //生成最小裁剪后的缩图  

    function Cut($toFile,$toW,$toH)  

    {  

          $toWH=$toW/$toH;  

          $srcWH=$this->srcW/$this-&g

Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

PhpStorm Mac version

PhpStorm Mac version

The latest (2018.2.1) professional PHP integrated development tool

Atom editor mac version download

Atom editor mac version download

The most popular open source editor

WebStorm Mac version

WebStorm Mac version

Useful JavaScript development tools

SecLists

SecLists

SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.

EditPlus Chinese cracked version

EditPlus Chinese cracked version

Small size, syntax highlighting, does not support code prompt function