(PHP 4, PHP 5, PHP 7) Sort an array using a "natural order" algorithm

(PHP 5, PHP 7) Constructs a ReflectionClass public

(PHP 4, PHP 5, PHP 7) Import variables into the current symbol table from an array

(PHP 4, PHP 5, PHP 7) Apply a user supplied function to every member of an array

(PHP 5 >= 5.3.0, PHP 7) Gets namespace name

(PECL quickhash >= Unknown) This method retrieves a value from the hash by its key

(PECL quickhash >= Unknown) This method checks whether a key is part of the hash

(PHP 7) Gets the $this value of the generator

(PHP 4 >= 4.0.4, PHP 5, PHP 7) Check for character(s) representing a hexadecimal digit

(PHP 5 >= 5.1.0, PHP 7) Checks if the object or class has a property