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<?php $a = 1; register_tick_function(function () use (&$a) { ++$a; }); declare(ticks = 1) { $a === 1 or exit(1); $a === 2 or exit(1); $a === 3 or exit(1); } echo "a = $a\n";
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 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 - 8.3.27, 8.4.1 - 8.4.14
a = 4

preferences:
161.13 ms | 407 KiB | 5 Q