php-src/Zend/tests/named_params/defaults.phpt
Nikita Popov d92229d8c7 Implement named parameters
From an engine perspective, named parameters mainly add three
concepts:

 * The SEND_* opcodes now accept a CONST op2, which is the
   argument name. For now, it is looked up by linear scan and
   runtime cached.
 * This may leave UNDEF arguments on the stack. To avoid having
   to deal with them in other places, a CHECK_UNDEF_ARGS opcode
   is used to either replace them with defaults, or error.
 * For variadic functions, EX(extra_named_params) are collected
   and need to be freed based on ZEND_CALL_HAS_EXTRA_NAMED_PARAMS.

RFC: https://wiki.php.net/rfc/named_params

Closes GH-5357.
2020-07-31 15:53:36 +02:00

36 lines
590 B
PHP

--TEST--
Skipping over default parameters
--FILE--
<?php
function test1($a = 'a', $b = 'b') {
echo "a: $a, b: $b\n";
}
function test2($a = SOME_CONST, $b = 'b') {
echo "a: $a, b: $b\n";
}
function test3($a = SOME_OTHER_CONST, $b = 'b') {
echo "a: $a, b: $b\n";
}
test1(b: 'B');
define('SOME_CONST', 'X');
test2(b: 'B');
// NB: We also want to test the stack trace.
test3(b: 'B');
?>
--EXPECTF--
a: a, b: B
a: X, b: B
Fatal error: Uncaught Error: Undefined constant "SOME_OTHER_CONST" in %s:%d
Stack trace:
#0 %s(%d): test3(NULL, 'B')
#1 {main}
thrown in %s on line %d