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phpThumb:强大的缩微图类

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Jun 20, 2016 pm 12:37 PM

在前面的文章中有说过一个PHP图片压缩裁剪程序：timthumb，今天要介绍的是另外一个强大的PHP图片缩微图类：phpThumb。

该类除了缩放图片外，还能将图片转换成不同的格式输出（比如将GIF格式的图片输出为PNG格式），其特色功能还包括色彩、特效等。

下面是phpThumb的一些有用的参数：

src：目标图片的地址

w：输出图片的宽度

h：输出图片的高度（如果不指定他将按w参数等比缩放）

q：输出如果是JPG格式的，可以规定它的输出质量

bg：输出时的背景（如果需要）

sw、sh、sx、sy：局部输出，宽高、起始位置

f：输出格式，可以为jpeg、png、gif、ico

sfn：输出gif动画中的某一帧

fltr[]：滤镜，可以有很多效果，包括锐化、模糊、旋翻转、水印、边框、遮照、色彩调整等

官方网址： http://phpthumb.sourceforge.net/

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