<?php $toks = [ '(?=\D*\d)', '\b(waiting)\b', '^(\w+)', '\b(response)\b', '\b(from)\b', '\|', '\b(to)\b', ]; $patterns_flattened = implode('|', $toks); if (preg_match_all("/$patterns_flattened/i", "I'm waiting for a response from", $matches)) { print_r($matches[0]); }
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