note 35116 added to function.imagecreatefromjpeg

From: Date: Wed, 20 Aug 2003 09:14:35 +0000
Subject: note 35116 added to function.imagecreatefromjpeg
Groups: php.notes 
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did you found that sometimes it hang the php when imagecreatefromjpeg() run on bad JPEG. I found that this is cause by the JPEG file U used dont have EOI (end of image) the FF D9 at the end of your JPEG JPEG image should start with 0xFFD8 and end with 0xFFD9 // this may help to fix the error function check_jpeg($f, $fix=false ){ # [070203] # check for jpeg file header and footer - also try to fix it if ( false !== (@$fd = fopen($f, 'r+b' )) ){ if ( fread($fd,2)==chr(255).chr(216) ){ fseek ( $fd, -2, SEEK_END ); if ( fread($fd,2)==chr(255).chr(217) ){ fclose($fd); return true; }else{ if ( $fix && fwrite($fd,chr(255).chr(217)) ){return true;} fclose($fd); return false; } }else{fclose($fd); return false;} }else{ return false; } } ---- Manual Page -- http://www.php.net/manual/en/function.imagecreatefromjpeg.php Edit Note -- http://master.php.net/manage/user-notes.php?action=edit+35116 Delete Note -- http://master.php.net/manage/user-notes.php?action=delete+35116&report=yes Reject Note -- http://master.php.net/manage/user-notes.php?action=reject+35116&report=yes

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