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<?php function highlight($text, $words) { preg_match_all ( '~[a-zA-Z_\']*~', $words, $m ); if (! $m) return $text; $re = '~\\b(' . implode ( '|', $m [0] ) . ')\\b~i'; return preg_replace ( $re, '<em>$0</em>', $text ); } $text = "this is Mechanic's test"; $word = "Mechanic's"; echo highlight($text,$word); $text = 'this is Mechanic"s test'; $word = 'Mechanic"s'; echo "\n".highlight($text,$word); $text = 'this is Mechanics test'; $word = 'mech'; echo "\n".highlight($text,$word); // echo "\n".str_replace($word,"<em>$word</em>",$text) ;
Output for git.master, git.master_jit, rfc.property-hooks
<em></em>this<em></em> <em></em>is<em></em> <em>Mechanic's</em><em></em> <em></em>test<em></em> <em></em>this<em></em> <em></em>is<em></em> <em>Mechanic</em><em></em>"<em></em><em>s</em><em></em> <em></em>test<em></em> <em></em>this<em></em> <em></em>is<em></em> <em></em>Mechanics<em></em> <em></em>test<em></em>

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