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run code in 200+ php & hhvm versions
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<?php $callback = function ($matches) { $string = $matches[0]; $string = str_replace(' ', '', $string); // remove unwanted whitespace $string = str_replace('(,', '(', $string); // remove unwanted comma $string = str_replace(',)', ')', $string); // remove unwanted comma $string = str_replace(',,', ',', $string); return $string; }; $string = '(`anurag`, 1,2), (1,2,3, `dm0c60544`),(2 ,3 ,3) '; $pattern = '#[0-9,()]#'; // our regex pattern $string = preg_replace_callback($pattern, $callback, $string); //replace backticked text and the following comma echo $string;
based on YeHaB
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.2.6
(`anurag`, 1,2), (1,2,3, `dm0c60544`),(2 ,3 ,3)