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run code in 300+ PHP versions simultaneously
<?php $re = '/\$\w+\K(?|\h*(\[)\h*(\'[^\']+\')\h*|(\h*\[)\h*("[^"]+")\h*)(?=])/m'; $str = '$foo [ "bar" ], $foo ["bar" ], $foo [ "bar"] $foo [ \'bar\' ], $foo [\'bar\' ], $foo [ \'bar\'] $foo [ \'this is different\' ]'; $result = preg_replace($re, '$1$2', $str); echo $result;
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.4, 8.3.6 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
$foo ["bar"], $foo ["bar"], $foo ["bar"] $foo['bar'], $foo['bar'], $foo['bar'] $foo['this is different']
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 $foo ["bar"], $foo ["bar"], $foo ["bar"] $foo['bar'], $foo['bar'], $foo['bar'] $foo['this is different']

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