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PHP判断图片格式的七种方法

WBOY
WBOYOriginal
2016-06-20 12:38:10989browse

<?php $imgurl = "http://finalshares.com/themes/site/biv_viva/images/logo.png"; //方法1 echo $ext = strrchr($imgurl,'.'); echo '<hr>'; //方法2 echo $ext1 = substr($imgurl,strrpos($imgurl, '.')); echo '<hr>'; //方法3 echo(@end(explode(".",$imgurl))); echo '<hr>'; //方法4 echo pathinfo($imgurl,PATHINFO_EXTENSION); print_r(pathinfo($imgurl)); echo '<hr>'; //方法5 $imginfo= getimagesize($imgurl); print_r($imginfo); echo end($imginfo); echo '<hr>'; //方法6 $imghttp = get_headers($imgurl,true); print_r($imghttp); echo '<hr>'; //方法7 echo exif_imagetype($imgurl);

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