用PHP判断一个gif图片是不是动画
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<?php |
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function IsAnimatedGif( $filename ) |
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{ |
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$fp = fopen ( $filename , 'rb' ); |
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$filecontent = fread ( $fp , filesize ( $filename )); |
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fclose( $fp ); |
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return strpos ( $filecontent , chr (0x21). chr (0xff). chr (0x0b). 'NETSCAPE2.0' ) === FALSE?0:1; |
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} |
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echo IsAnimatedGif( "https://licai.so/img/weekreport.gif" ); |
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?> |