Code for php online compression and decompression of SWF files (revised version)

//-----------------
//File name
$filename = "test.swf";
//Open the file
 $rs = fopen($filename, "r");
//Read file data
$str = fread($rs, filesize($filename));
//Set swf header file
$head = substr( $str, 0, 8);
$head[0] = 'F';
//Get the swf file content
$body = substr($str, 8);
//Compress the file content, use the highest compression level 9
$body = gzcompress($body, 9);
//Merge file header and content
$str = $head . $body;
//Close the read file stream
fclose($rs);
//Create A new file
$ws = fopen("create.swf", "w");
//Write the file
fwrite($ws, $str);
//Close the file
fclose($ws);
 //-------------------
?>

2, decompress the swf file online

//------------------
//File name
$filename = "1000109.swf";
// Open the file
$rs = fopen($filename, "r");
//Read the file data
$str = fread($rs, filesize($filename));
//Set the swf header file
$head = substr($str, 0, 8);
//$head = 'F' . $head;
$head[0] = 'F';
/*$head[1] = ('W');
$head[2] = ('S');
//$head[3] = version;
$head[4] = ($str % 256);
$head[5] = ($str / 256 % 256);
$head[6] = ($str / 256 / 256 % 256);
$head[7] = ($str / 256 / 256 / 256 % 256);*/
//Get swf file Content
$body = substr($str, 8);
//Decompress file content
$body = gzuncompress($body);
//Merge file header and content
$str = $head . $body;
/ /Close the read file stream
fclose($rs);
//Create a new file
$ws = fopen("create.swf", "w");
//Write the file
fwrite($ws, $str);
//Close the file
fclose($ws);
//------------------
?>