(No version information available, might only be in Git) This method returns a serialized version of the hash

(PHP 4 >= 4.0.1, PHP 5, PHP 7) Create an anonymous (lambda-style) function

(PHP 4 >= 4.0.3, PHP 5, PHP 7) De-register a function for execution on each tick

(PHP 4, PHP 5, PHP 7) Gets the properties of the given object

(PHP 5, PHP 7) Returns an array of all declared interfaces

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

(PHP 5, PHP 7) Gets the constructor of the class

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

(PHP >= 5.4.0) Returns a dynamically created closure for the method

(PHP 5, PHP 7) Checks if method is a constructor