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<?php $b = 5; function f1 () { global $a; $a = 4; $b = 3; f2(); } function f2 () { global $a, $b; echo "a = $a\nb = $b\n"; } f1();
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 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
a = 4 b = 5

preferences:
99.18 ms | 1485 KiB | 4 Q