exif_imagetype

( PHP 4 CVS only )

exif_imagetype -- Determine the type of an image

Description

int|false exif_imagetype ( string filename)

1 = IMAGETYPE_GIF , 2 = IMAGETYPE_JPG , 3 = IMAGETYPE_PNG , 4 = IMAGETYPE_SWF , 5 = IMAGETYPE_PSD , 6 = IMAGETYPE_BMP , 7 = IMAGETYPE_TIFF_II ( intel byte order) , 8 = IMAGETYPE_TIFF_MM (motorola byte order ) , 9 = IMAGETYPE_JPC , 10 = IMAGETYPE_JP2 , 11 = IMAGETYPE_JPX .

This function can be used to avoid calls to other exif functions with unsupported file teypes or in conjunction with $_SERVER[ 'HTTP_ACCEPT' ] to check whether or not the viewer is able to see a specific image in his browser .

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