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<?php $string = 'I am flying from "Detroit to Vancouver" this to July'; $stopwords = array( "to", "anotherstopword", "andanother"); echo preg_replace('/"[^"\\\\]*(?>\\\\.[^"\\\\]*)*"(*SKIP)(*F)|\b(' . implode ('|', array_map('preg_quote', $stopwords)) . ')\b\h*/', '', $string);
Output for git.master_jit, git.master, rfc.property-hooks
I am flying from "Detroit to Vancouver" this July

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