PYTHON func_num_args

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Python replacement for PHP's func_num_args [ edit | history ]
php

<?php
function myFunction($a, $b, $c) {
echo func_num_args() // 3
}


python

def myFunction(*args):
print(len(args))

PHP func_num_args

PHP original manual for func_num_args [ show | php.net ]

func_num_args

(PHP 4, PHP 5)

func_num_argsReturns the number of arguments passed to the function

Description

int func_num_args ( void )

Gets the number of arguments passed to the function.

This function may be used in conjunction with func_get_arg() and func_get_args() to allow user-defined functions to accept variable-length argument lists.

Return Values

Returns the number of arguments passed into the current user-defined function.

Changelog

Version Description
5.3.0 This function can now be used in parameter lists.

Errors/Exceptions

Generates a warning if called from outside of a user-defined function.

Examples

Example #1 func_num_args() example

<?php
function foo()
{
    
$numargs func_num_args();
    echo 
"Number of arguments: $numargs\n";
}

foo(123);    // Prints 'Number of arguments: 3'
?>

Notes

Note: Because this function depends on the current scope to determine parameter details, it cannot be used as a function parameter. If this value must be passed, the results should be assigned to a variable, and that variable should be passed.

See Also