PHP获取图片大小函数
PHP获取图片大小函数。getimagesize() 能够得到图片及flash（swf）的大小。语法
list($width, $height, $type, $attr) = getimagesize("image_name.jpg");
下面是一个实例程序，将image_name.jpg改为您的图片地址
<?php
list($width, $height, $type, $attr) = getimagesize("image_name.jpg");
echo "Image width " .$width;
echo "<BR>";
echo "Image height " .$height;
echo "<BR>";
echo "Image type " .$type;
echo "<BR>";
echo "Attribute " .$attr;
?>
运行这个脚本，你会看到如下结果：
Image width 379
Image height 344
Image type 2
Image attribute width="379" height="344"
你能够轻易的得到图片的宽度，高度及类型。
图片的类型：
1 = GIF 5 = PSD 9 = JPC 13 = SWC
2 = JPG 6 = BMP 10 = JP2 14 = IFF
3 = PNG 7 = TIFF(intel byte order) 11 = JPX 15 = WBMP
4 = SWF 8 = TIFF(motorola byte order) 12 = JB2 16 = XBM
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