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@ 2013-06-10T07:50:57Z

<?php

$text = "Some test text string with stop-words: stw stw2 stopword stw3stw stopword2c";

$stopwords = array(
	'stw',
    'stopword'
);

$regexp = '/';
$regexp.= '(' . implode('|', $stopwords) . ')' . '/';

var_dump($regexp);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
implode: documentation ( source)

preferences:dark modelive preview

32.84 ms | 402 KiB | 5 Q