php - Hexadecimal String to binary PDF file -


i have hexadecimal value pdf getting web service trying save locally using php. below snippet of value.

i have tried achieve using pack in php either receive error "x" not valid or pdf not save correctly. empty or says error opening.

   partial value is:     "0x255044462d312e340a0a322030206f626a0a3c3c2f5479"

i have tried following unsuccessfully after searching google time:

   $pack = pack("h*", $string);      file_put_contents('my.pdf', $pack);     header('content-type: application/pdf');     header('content-disposition: attachment; filename="my.pdf"');     echo $pack;

can tell me doing incorrectly? realize not entire pdf cant put entire online.

thanks help


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