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<?php declare(strict_types = 1); $callable1 = [new ArrayObject([0]), 'count']; $callable2 = array_reverse($callable1, true); var_dump( is_callable($callable1), is_callable($callable2), );
Output for 8.1.0 - 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(true) bool(true)

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65.89 ms | 972 KiB | 4 Q