This is real bummer, as u. $ xorsum; } if (! $ raw_ output) $ output = bin2hex( $ output) ; return $ length? substr( $ output, 0, $ length) : $ output; }. この状態でmb_ strpos関数などを使うと、 「 Fatal error: Call to undefined function. 」 と表示されます。 ポイントは左端の「 ;. Because it bin2hex net/ manual/ en/ function. php not " bintohex". random_ bytes basically exist only in Php 7 according to docs net/ random_ bytes but here is polyfill to 5. I am trying to call a function from another function. I get an error: Fatal error: Call to undefined function getInitialInformation( ) in controller. Fatal error: Call to undefined function wp( ) in / home/ content/ 33/ 7211533/ html/ someSite/ wp- blog- header. php on line 14 Can anyone figure whats the problem? hex2bin is available with PHP Version > = 5. 0 - is your PHP version up 2 date?
Below ( copied from php. net) is a solution if your version can not be updated: