Things to remeber in php

Things to remember in php so that you don't dependent on google and manual.

• To push values in array $stack.
  

array_push($stack, "apple", "raspberry");

• preg_split used in youngib api for commandline interface .
  array preg_split ( string $pattern , string $subject [, int $limit = -1 [, int $flags = 0 ]] )