<?php $array = array('w','z','u','o','ul.'); $titleOld = 'Testing w it\'s ul. here'; $words = explode(' ', $titleOld); $titleNew = trim(join('', array_map(function($word) use ($array) { return $word . (in_array($word, $array) ? " " : ' '); }, $words))); echo $titleNew; // "Testing w it's ul. here"
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