php缩放图片(根据宽高的等比例缩放)实例介绍
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php缩放图片(根据宽高的等比例缩放)实例介绍，
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推荐一个简单实用的缩放图片工具 SimpleImage，参考http://www.white-hat-web-design.co.uk/blog/resizing-images-with-PHP/
设定宽高，不等比例缩放
<div class="codetitle">@H_
502_3@<a style="CURSOR: pointer" data="15122" class="copybut" id="copybut15122" onclick="doCopy('code15122')">
代码如下:
<div class="codebody" id="code15122">
<?
PHP include('SimpleImage.
PHP');
$image = new SimpleImage();
$image->load('picture.jpg');
$image->resize(250,400);
$image->save('picture2.jpg');?> 设定宽度，等比例缩放<?
PHP include('SimpleImage.
PHP');
$image = new SimpleImage();
$image->load('picture.jpg');
$image->resizeToWidth(250);
$image->save('picture2.jpg');?> 设定高度，等比例缩放<?
PHP include('SimpleImage.
PHP');
$image = new SimpleImage();
$image->load('picture.jpg');
$image->resizeToHeight(500);
$image->save('picture2.jpg');
$image->resizeToHeight(200);
$image->save('picture3.jpg');?> 按比例，缩放至50%<?
PHP include('SimpleImage.
PHP');
$image = new SimpleImage();
$image->load('picture.jpg');
$image->scale(50);
$image->save('picture2.jpg');?>缩放后直接
输出到屏幕<?
PHP header('Content-Type: image/jpeg');
include('SimpleImage.
PHP');
$image = new SimpleImage();
$image->load('picture.jpg');
$image->resizeToWidth(150);
$image->output();?>
SimpleImage.
