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<?php // (1) namespace X; // (2) function f(array $o) { return [&$o['v']]; } $v = ['z', 'a']; $a = ['v' => $v]; $args = f($a); call_user_func_array('sort', $args); // Additionally, if the above 2 lines are replaced by the following // line, the bug never appears. //call_user_func_array('sort', f($a));
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33
Warning: Parameter 1 to sort() expected to be a reference, value given in /in/QE9Vf on line 15

preferences:
150.06 ms | 407 KiB | 5 Q