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run code in 300+ PHP versions simultaneously
<?php $values = [null, false, '', '0', 0]; foreach ($values as $value) { var_dump($value); var_dump(is_scalar($value)); echo '----', PHP_EOL; }
Output for 7.1.25 - 7.1.30, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.31, 8.2.0 - 8.2.26, 8.3.0 - 8.3.14, 8.4.1
NULL bool(false) ---- bool(false) bool(true) ---- string(0) "" bool(true) ---- string(1) "0" bool(true) ---- int(0) bool(true) ----
preferences:
80.72 ms | 407 KiB | 5 Q