(PHP 4, PHP 5, PHP 7) Returns an array comprising a function's argument list array func_get_args ( void ) Gets an array of the function's argument list. This function may be used in conjunction with func_get_arg() and func_num_args() to allow user-defined functions to accept variable-length argument lists. Returns: Returns an array in which each element is a copy of the corresponding member of t

(PHP 4, PHP 5, PHP 7) Return an item from the argument list mixed func_get_arg ( int $arg_num ) Gets the specified argument from a user-defined function's argument list. This function may be used in conjunction with func_get_args() and func_num_args() to allow user-defined functions to accept variable-length argument lists. Parameters: arg_num The argument offset. Funct

(PHP 5 >= 5.3.0, PHP 7) Call a static method mixed forward_static_call ( callable $function [, mixed $parameter [, mixed $... ]] ) Calls a user defined function or method given by the function parameter, with the following arguments. This function must be called within a method context, it can't be used outside a class. It uses the late static binding. Parameters: function

(PHP 5 >= 5.3.0, PHP 7) Call a static method and pass the arguments as array mixed forward_static_call_array ( callable $function, array $parameters ) Calls a user defined function or method given by the function parameter. This function must be called within a method context, it can't be used outside a class. It uses the late static binding. All arguments of the forwarded method are passed as values, and as an array, sim

(PHP 4 >= 4.0.1, PHP 5, PHP 7) Create an anonymous (lambda-style) function string create_function ( string $args, string $code ) Creates an anonymous function from the parameters passed, and returns a unique name for it. Caution This function internally performs an eval() and as such has the same security issues as eval(). Additionally it has bad performance and memory usage characteristics. If you are using PHP 5.3.

(PHP 4, PHP 5, PHP 7) Call the callback given by the first parameter mixed call_user_func ( callable $callback [, mixed $parameter [, mixed $... ]] ) Calls the callback given by the first parameter and passes the remaining parameters as arguments. Parameters: callback The callable to be called. parameter Zero or more parameters to be pa

(PHP 4 >= 4.0.4, PHP 5, PHP 7) Call a callback with an array of parameters mixed call_user_func_array ( callable $callback, array $param_arr ) Calls the callback given by the first parameter with the parameters in param_arr. Parameters: callback The callable to be called. param_arr The parameters to be passed to the callback, as an i

(PHP 5 >= 5.2.0, PHP 7) Filters a variable with a specified filter mixed filter_var ( mixed $variable [, int $filter = FILTER_DEFAULT [, mixed $options ]] ) Parameters: variable Value to filter. filter The ID of the filter to apply. The Types of filters manual page lists the available filters. If omitted, FILTER_DEFAULT will be used

(PHP 5 >= 5.2.0, PHP 7) Gets multiple variables and optionally filters them mixed filter_var_array ( array $data [, mixed $definition [, bool $add_empty = true ]] ) This function is useful for retrieving many values without repetitively calling filter_var(). Parameters: data An array with string keys containing the data to filter. definition

(PHP 5 >= 5.2.0, PHP 7) Returns a list of all supported filters array filter_list ( void ) Returns: Returns an array of names of all supported filters, empty array if there are no such filters. Indexes of this array are not filter IDs, they can be obtained with filter_id() from a name instead. Examples: A filter_list() example