(PHP 5 >= 5.4.0, PHP 7)
getimagesizefromstring — 锟斤拷锟街凤拷锟斤拷锟叫伙拷取图锟斤拷叽锟斤拷锟较�
$imagedata
[, array &$imageinfo
] ) : array同 getimagesize() 锟斤拷锟斤拷锟斤拷 锟斤拷锟斤拷锟斤拷 getimagesizefromstring() 锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷图锟斤拷锟斤拷锟捷碉拷锟街凤拷锟斤拷锟斤拷铮拷锟斤拷锟斤拷锟斤拷募锟斤拷锟斤拷锟�
锟斤拷锟节憋拷锟斤拷锟斤拷锟斤拷喂锟斤拷锟斤拷母锟斤拷锟斤拷锟较拷锟轿硷拷 getimagesize() 锟斤拷锟斤拷锟斤拷
imagedata图锟斤拷锟斤拷锟捷碉拷锟街凤拷锟斤拷锟斤拷示锟斤拷
imageinfo锟轿硷拷 getimagesize() 锟斤拷锟斤拷锟斤拷
锟轿硷拷 getimagesize() 锟斤拷锟斤拷锟斤拷
Example #1 getimagesizefromstring() 锟斤拷锟斤拷锟斤拷锟斤拷
<?php
$img = '/path/to/test.png';
// 锟斤拷锟侥硷拷锟斤拷式锟斤拷
$size_info1 = getimagesize($img);
// 锟斤拷锟街凤拷锟斤拷锟斤拷式锟斤拷
$data = file_get_contents($img);
$size_info2 = getimagesizefromstring($data);
?>