int func_get_args(void );Returns an array in which each element is the corresponding member of the current user-defined function's argument list. func_get_args will generate a warning if called from outside of a function definition.
<?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";
}
$arg_list = func_get_args();
for ( $i = 0; $i < $numargs; $i++ ) {
echo "Argument $i is: " . $arg_list[$i] . "<br>\n";
}
}
foo( 1, 2, 3 );
?>
func_get_args may be used in conjunction with func_num_args and func_get_arg to allow user-defined functions to accept variable-length argument lists.
注意: This function was added in PHP 4.