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<?php $str = '{code}var a = 1;{code} then, {noformat}a = 5;{noformat} and, {code}a -= 4;{code}'; $codePatterns = [ '/{code}(.*?){code}/', '/{noformat}(.*?){noformat}/' ]; echo preg_replace($codePatterns, '<code>$1</code>', $str);
Output for 7.1.25 - 7.1.28, 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.13
<code>var a = 1;</code> then, <code>a = 5;</code> and, <code>a -= 4;</code>

preferences:
141 ms | 407 KiB | 5 Q