3v4l.org

run code in 300+ PHP versions simultaneously
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Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 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 - 8.1.31, 8.2.0 - 8.2.27, 8.3.0 - 8.3.17, 8.4.1 - 8.4.4
string(4) "A A"
Output for 5.2.5 - 5.2.17, 5.3.0 - 5.3.29
string(0) ""
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.4
string(3) "A�A"
Output for 4.3.0 - 4.3.1

Process exited with code 139.

preferences:
160.21 ms | 414 KiB | 5 Q