func_get_arg()
func_get_arg() — Return an item from the argument list.
Built-in function of PHP 8.5. The manual lists it as available in PHP 4, PHP 5, PHP 7, PHP 8. This page is the reference card: signature, parameters and return value, plus the changelog and the example the manual provides.
What it does
Gets the specified argument from a user-defined function's argument list.
Signature
func_get_arg(int $position): mixed
Parameters
| Parameter | Type | What it takes |
|---|---|---|
| $position | int | The argument offset. Function arguments are counted starting from zero. |
Return value
Returns the specified argument, or false on error.
Example
A runnable snippet:
function foo() { $numargs = func_num_args(); echo "Number of arguments: $numargs\n"; if ($numargs >= 2) { echo "Second argument is: " . func_get_arg(1) . "\n"; } } foo(1, 2, 3);
Output:
Number of arguments: 3 Second argument is: 2
See also
func_get_args(), func_num_args()
All PHP 8.5 built-in functions
Reference card built from the PHP manual page func_get_arg() (PHP documentation, CC BY 3.0). The page is generated from the manual, so the wording of the parameter and return value text follows php.net.