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<?php class X { private function z($matches) { var_dump($matches); switch ($matches) { case 'cool': return 'wow'; case 'hey': return 'hehe'; } } public function y($template) { echo preg_replace_callback('/\([\[\s?([^\]]+)\s?\])/', [$this, 'z'], $template); } } $x = new X(); $x->y('bla bla [[ hey ]] dasfasdf [[ cool ]] werwr');
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Warning: preg_replace_callback(): Compilation failed: unmatched closing parenthesis at offset 15 in /in/1s8eI on line 15
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
Warning: preg_replace_callback(): Compilation failed: unmatched parentheses at offset 15 in /in/1s8eI on line 15

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