(PHP 4, PHP 5, PHP 7) Create array containing variables and their values

(PHP 5 >= 5.4.6, PHP 7) Returns whether the default value of this parameter is constant

(PHP 4, PHP 5, PHP 7) Dumps information about a variable

(PHP 5 >= 5.1.0, PHP 7) Gets doc comments

(PHP 4 >= 4.0.4, PHP 5, PHP 7) Check for whitespace character(s)

(PECL quickhash >= Unknown) This factory method creates a hash from a file

(PECL classkit >= 0.1) Dynamically changes the code of the given method

(PHP 4, PHP 5, PHP 7) Generates a storable representation of a value

(PHP 7) Gets the executing

(PHP 5 >= 5.1.0, PHP 7) Checks if property is defined