php判断gif图片是否为动画，即帧数是否大于1。代码如下： { $fp=fopen($filename, 'rb'); $filecontent=fread($fp, filesize($filename)); fclose($fp); return strpos($filecontent,chr(0x21).chr(0xff).chr(0x0b).'NETSCAPE2.0')===FALSE?0:1; } echo IsAnimatedGif("zzsky.gif"); ?>
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