慎用PHP内置的Math函数
如题所示。。。木有做大规模的运算，还不知道。。。擦，PHP的Math函数运算原来是如此之慢的。。。大家还是麻烦点，手写多几句算鸟~~~ 小二！
2012年12月
PHP 图片库效率测试 GD Vs. Image Magick 【译】
After doing some research, I found plenty of claims that GD is faster than Image Magick. But how much faster? I was on a quest to find out. I took a rather large jpeg image (3504 x 2336 pixels) and converted it to three other popular formats, png, gif, and bitmap. I then wrote a script that resizes each one to 300 x 200 pixels (png shown below) using both