$_POST

ReCaptcha "invalid-request-cookie"

November 2, 2013November 28, 2022

invalid-request-cookie My browser showed an error which sourced from ReCaptcha: invalid-request-cookie The official document says that the "invalid-request-cookie" means: The challenge parameter of the verify… Read More »

How to Distinguish the Scope of Superglobals in PHP

July 17, 2013November 25, 2022

The superglobals in PHP are: $GLOBALS $_SERVER $_GET $_POST $_FILES $_COOKIE $_SESSION $_REQUEST $_ENV Don't be confused by the name of superglobals, their scopes vary… Read More »

How to Parse Variables in a String

July 13, 2013December 11, 2022

Parse error: syntax error, unexpected '' To use a plain-old variable to represent the element of array is a safe way in a double-quotes string.… Read More »