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getimagesize获取图片尺寸实例_php技巧

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Release: 2016-05-16 20:31:44
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本文实例讲述了getimagesize获取图片尺寸的方法。分享给大家供大家参考。具体如下:

php有现成的函数getimagesize用于获取图像的尺寸,代码示例:

复制代码 代码如下:
/* 1.jpg为你想获得其尺寸的图片 */
$arr = getimagesize("1.jpg");
/**
 * 这里$arr为一个数组类型
 * $arr[0] 为图像的宽度
 * $arr[1] 为图像的高度
 * $arr[2] 为图像的格式,包括jpg、gif和png等
 * $arr[3] 为图像的宽度和高度,内容为 width="xxx" height="yyy"
 */
/* 以下两行代码输出的内容都是一样的 */
echo "";
echo "";
?>

希望本文所述对大家的PHP程序设计有所帮助。

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