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<?php $str = "this is a Test String to get the last index of word with an uppercase letter in PHP"; $pattern = "/.*\s([A-Z])(\w+)/"; //$pattern = "/.*\s([A-Z])[A-Z]+/"; preg_match($pattern, $str, $match); var_dump($match); $letter = $match[1]; $word = $match[1] . $match[2]; $position = strrpos($str, $match[1].$match[2]); echo $letter . $word. $position;
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
array(3) { [0]=> string(83) "this is a Test String to get the last index of word with an uppercase letter in PHP" [1]=> string(1) "P" [2]=> string(2) "HP" } PPHP80

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