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func_num_args
Returns the number of arguments passed to the function
(PHP 4, PHP 5)
int func_num_args ( )
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.
Examples
Example 760. func_num_args() example
<?php
function foo()
{
$numargs = func_num_args();
echo "Number of arguments: $numargs\n";
}
foo(1, 2, 3); // 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 you must pass this value, assign the results to a variable, and pass the variable.
See Also
| func_get_arg() |
| func_get_args() |