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php缩放图片(根据宽高的等比例缩放)示例 - 站长搜索
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php缩放图片(根据宽高的等比例缩放)示例

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2014-12-16 04:15:03 转载来源: 网络整理/侵权必删

本文是一个php缩放图片(根据宽高的等比例缩放)示例代码,感兴趣的同学参考下。 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了解下哈 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/ 使用方法: 设定宽高,不等比例缩放 <?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

本文是一个php缩放图片(根据高的比例缩放)示例代码,感兴趣的同学参考下。

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了解下哈
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/

使用方法:

设定宽高,不等比例缩放


<?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();?>
 

标签: 缩放 php 图片 根据 高的 比例 示例


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