How PHP generates thumbnails

This article mainly introduces how to generate thumbnails in PHP, interested in the reference of friends, I hope to be helpful to everyone.

PHP upload images, generate thumbnails is more commonly used to the function, generally we will write these features a class, convenient for us to call. Today found a simpler PHP generated thumbnail functions of the Code, dare not exclusive, I would like to share with you. Take a careful look at your own use, there are comments in the code.

This article is an example of how PHP simply generates thumbnail albums. Specific as follows:

<?php/* * Written by MOT * root directory own new image thumb directory * */class thumb{private $src;  Private $source;  Private $s _width;  Private $s _height;  Private $dest;  Private $d _height;  Private $d _width;  Private $name;    Public function thumb ($image _path, $rate = 0.5) {$this->src = $image _path;    $this->source = imagecreatefromjpeg ($image _path);    $s _size = getimagesize ($image _path);    $this->s_height = $s _size[1];    $this->s_width = $s _size[0];    $this->d_height = 100;    $this->d_width = 100;    $this->dest = imagecreate ($this->d_width, $this->d_height);    $this->name = explode ('. jpg ', $image _path);  $this->name = $this->name[0]; Public function make () {imagecopyresized ($this->dest, $this->source, 0, 0, 0, 0, $this->d_width, $this-    D_height, $this->s_width, $this->s_height);    $thumb = Str_replace (' image ', ' thumb ', $this->name. '-thumb.jpg ');    Imagejpeg ($this->dest, $thumb, 100);    $img = $thumb; echo "<ahref= $this->src></a> ";  }} $HL = Opendir (". \\image\\"), while (false! = $file = Readdir ($HL)) {if ($file = = '. ' | | $file = = ' ... ') continue;  $path = '. \\image\\ '. $file;  $tmp = new Thumb ($path, 0.3); $tmp->make ();}

Summary: the above is the entire content of this article, I hope to be able to help you learn.

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