func_get_arg
(PHP 4 )
func_get_arg -- Return an item from the argument list
Description
mixed func_get_arg ( int arg_num)
Returns the argument which is at the arg_num'th offset into
a user-defined function's argument list. Function arguments
are counted starting from zero. func_get_arg() will generate
a warning if called from outside of a function definition.
If arg_num is greater than the number of arguments actually
passed, a warning will be generated and func_get_arg() will
return FALSE.
<?php
function foo()
{
$numargs = func_num_args();
echo "Number of arguments: $numargs<br />\n";
if ($numargs >= 2) {
echo "Second argument is: " . func_get_arg(1)
. "<br />\n";
}
}
foo (1, 2, 3);
?>
func_get_arg() may be used in conjunction with func_num_args()
and func_get_args() to allow user-defined functions to accept
variable-length argument lists.
Note: This function was added in PHP 4.
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