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php缩放图片(根据宽高的等比例缩放)实例介绍

WBOY
WBOYOriginal
2016-06-06 20:31:401219browse

设定宽高,不等比例缩放;设定宽度,等比例缩放;设定高度,等比例缩放;按比例,缩放至50%;缩放后直接输出到屏幕等等,具体使用方法如下,感兴趣的额朋友可以

推荐一个简单实用的缩放图片工具 SimpleImage,网站空间,参考

使用方法:

设定宽高,免备案空间,不等比例缩放

复制代码 代码如下:


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

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

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%

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

header('Content-Type: image/jpeg');
include('SimpleImage.php');
$image = new SimpleImage();
$image->load('picture.jpg');
$image->resizeToWidth(150);
$image->output();?>


SimpleImage.php 源码请轻点文章开头链接,到那下载 ,服务器空间
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