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<?php $s = 'Stringable'; var_dump($s instanceof Stringable); var_dump(method_exists($s, '__toString'));
Output for 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
bool(false) bool(true)
preferences:
59.52 ms | 834 KiB | 4 Q