Php getimagesize function to obtain image width and height

If you want to use php to obtain the image height and width, you can directly use the getimagesize function in php to operate the function. The following describes how to use the getimagesize function.

The getimagesize () function will determine any GIF, JPG, PNG, SWF, SWC, PSD, TIFF, BMP, IFF, JP2, JPX, JB2, JPC, the size of the XBM or WBMP image file, the size of the returned image, the file type, and a height/width text string that can be used in the IMG mark of a common HTML file.

The Code is as follows:

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$ Arr = getimagesize ("http://www.php100.com/html/php/hanshu/2013/0905/1.jpg "); /** * $ Arr is an array type. * $ Arr [0] indicates the image width. * $ Arr [1] indicates the Image Height. * $ Arr [2] is the image format, including jpg, gif, and png. * $ Arr [3] indicates the width and height of the image, and the content is width = "xxx" height = "yyy" */ /* The output content of the following two lines of code is the same */ Echo ""; Echo ""; ?>

The above php Code is interpreted:

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Example

Example #1 getimagesize (file)

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List ($ width, $ height, $ type, $ attr) = getimagesize ("http://www.php100.com/html/php/hanshu/2013/0905/img/flag.jpg "); Echo ""; ?>