3v4l.org

run code in 300+ PHP versions simultaneously
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Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.5 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.32, 8.2.0 - 8.2.28, 8.3.0 - 8.3.20, 8.4.1 - 8.4.6
0<br/> H6<br/> 1<br/> H7<br/> 2<br/> H8<br/> 3<br/> H9<br/> 4<br/> H10<br/> 5<br/> H11<br/> 6<br/> H12<br/> 7<br/> H13<br/>
preferences:
158.39 ms | 413 KiB | 5 Q