Coverting Hex to Image in PHP?

Question

I am developing mobile app which talks with server via PHP Webservice. This is my first time using PHP. I managed to upload data in to database. Now i need to s

Answer 1

Convert the HEX string to binary:

$binary = pack("H*", $hex);

pack("H*", ...) is equivalent to hex2bin, which is available since PHP 5.4.

Write it to disk:

file_put_contents("file.png", $binary);