3v4l.org

run code in 300+ PHP versions simultaneously
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Output for 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 - 8.3.19, 8.4.1 - 8.4.5
Warning: preg_match_all(): Compilation failed: invalid range in character class at offset 5 in /in/LC0hG on line 6 NULL Warning: preg_match_all(): Compilation failed: invalid range in character class at offset 3 in /in/LC0hG on line 7 NULL
Output for 7.3.16 - 7.3.33
string(37) "ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcd" Warning: preg_match_all(): Compilation failed: invalid range in character class at offset 3 in /in/LC0hG on line 7 NULL
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33
Warning: preg_match_all(): Compilation failed: invalid range in character class at offset 4 in /in/LC0hG on line 6 NULL string(12) "-0123456789A"
preferences:
150.65 ms | 414 KiB | 5 Q