note 17063 deleted from function.getimagesize by jimw

From: Date: Mon, 10 Dec 2001 23:33:16 +0000
Subject: note 17063 deleted from function.getimagesize by jimw
References: 1  Groups: php.notes 
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ive found that the GetImageSize function can be used quite well for testing for image types, using element [2] of the array. despite the notes of the function, GetImageSize does not return an error code when trying to load a non-image (php4) and instead just returns null. heres a sample of code i put together to test file $img to see if its a valid jpeg file. $size = GetImageSize("$img"); if($size2[2]==2) { echo "$img"." is a valid JPEG image."; } else { echo "$img"." is not a valid JPEG image."; }

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