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<?php $a = range(-10, 10); $b = range(-10, 10, 0.2); $opResults = []; $funcResults = []; foreach($a as $_a) { foreach($b as $_b) { $opResults[] = $a ** $b; $funcResults[] = pow($a, $b); } } var_dump($opResults === $funcResults, $opResults, $funcResults);
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught TypeError: Unsupported operand types: array ** array in /in/vYqfp:14 Stack trace: #0 {main} thrown in /in/vYqfp on line 14
Process exited with code 255.

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