3v4l.org

run code in 300+ PHP versions simultaneously
<?php declare(toks=1){ $x = true; } declare(teks=1){ $x = false; } var_dump($x);
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 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 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Warning: Unsupported declare 'toks' in /in/Qnsvl on line 3 Warning: Unsupported declare 'teks' in /in/Qnsvl on line 7 bool(false)
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
bool(false)

preferences:
238.68 ms | 402 KiB | 308 Q