3v4l.org

run code in 500+ PHP versions simultaneously
<?php class A { public function b($a, $b = 0) { var_dump($b); } public function c($a, $b = 0) { $b = $b ?: 0; var_dump($b); } } $a = new A(); $a->b(1); $a->b(1, NULL); $a->b(1, 0); $a->b(1, ''); $a->b(1, []); $a->b(1, (object) []); print '----------------' . PHP_EOL; $a->c(1); $a->c(1, NULL); $a->c(1, 0); $a->c(1, ''); $a->c(1, []); $a->c(1, (object) []);
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.34, 8.3.0 - 8.3.35, 8.4.1 - 8.4.26, 8.5.0 - 8.5.11
int(0) NULL int(0) string(0) "" array(0) { } object(stdClass)#2 (0) { } ---------------- int(0) int(0) int(0) int(0) int(0) object(stdClass)#2 (0) { }

preferences:
33.81 ms | 1138 KiB | 7 Q