1--TEST-- 2Check for exif_thumbnail 3--SKIPIF-- 4<?php if (!extension_loaded('exif')) print 'skip exif extension not available';?> 5--INI-- 6output_handler= 7zlib.output_compression=0 8--FILE-- 9<?php 10/* 11 test1.jpg is a 1*1 image that does not contain any Exif/Comment information 12 test2.jpg is the same image but contains Exif/Comment information and a 13 copy of test1.jpg as a thumbnail. 14*/ 15$infile = __DIR__.'/test1.jpg'; 16echo md5_file($infile).'_'.filesize($infile); 17$thumb = exif_thumbnail(__DIR__.'/test2.jpg'); 18echo " == "; 19echo md5($thumb).'_'.strlen($thumb); 20echo "\n"; 21?> 22--EXPECT-- 2327bbfd9fc10e1e663d749f5225447905_523 == 27bbfd9fc10e1e663d749f5225447905_523 24