PHP determines whether a gif image is animated_PHP tutorial

PHP determines whether the gif image is animated, that is, whether the frame number is greater than 1. The code is as follows:

　{ $fp=fopen($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"); ?>

http://www.bkjia.com/PHPjc/822512.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/822512.htmlTechArticlephp determines whether the gif image is animated, that is, whether the frame number is greater than 1. The code is as follows: { $fp=fopen($filename, 'rb'); $filecontent=fread($fp, filesize($filename)); fclose($fp); return strpos(...