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run code in 300+ PHP versions simultaneously
<?php $a = "ab"; echo preg_replace("/(a)|(b)/", "(+${2}+)(-$1-)", $a);
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Deprecated: Using ${expr} (variable variables) in strings is deprecated, use {${expr}} instead in /in/9g8lg on line 5 Warning: Undefined variable $2 in /in/9g8lg on line 5 (++)(-a-)(++)(--)
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 Deprecated: Using ${expr} (variable variables) in strings is deprecated, use {${expr}} instead in /in/9g8lg on line 5 Warning: Undefined variable $2 in /in/9g8lg on line 5 (++)(-a-)(++)(--)
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27
Warning: Undefined variable $2 in /in/9g8lg on line 5 (++)(-a-)(++)(--)
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined variable: 2 in /in/9g8lg on line 5 (++)(-a-)(++)(--)
Output for 7.3.32 - 7.3.33
(++)(-a-)(++)(--)

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