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run code in 300+ PHP versions simultaneously
<?php ini_set("pcre.jit", 0); $string = '--'; $doesNotMatchInPhp7 = '/(?|(---)|(-))\1$/'; $matchesInPhp7 = '/(?|(-)|(---))\1$/'; var_dump(preg_match($doesNotMatchInPhp7, $string)); var_dump(preg_last_error()); var_dump(preg_match($matchesInPhp7, $string));
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 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 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
int(1) int(0) int(1)
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 int(1) int(0) int(1)

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271.39 ms | 402 KiB | 286 Q