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<?php $text = 'a container_ids="4" resp. container_ids="777"'; $nahrada = preg_replace_callback('~(container_ids=")(\d+)(")~', function ($matches) { return $matches[1] . ($matches[2] + 10) . $matches[3]; }, $text); var_dump($nahrada);
Output for 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 - 8.4.14
string(46) "a container_ids="14" resp. container_ids="787""

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