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<?php $re = '/(text)(?!<\/a>)/m'; $str = 'this is sample text about something what is text. this is sample <a href=\'somelink.php\'>text</a> about something what is <a href=\'somelink.php\'>text</a>.'; $subst = '<a href=\'somelink.php\'>$1</a>'; $result = preg_replace($re, $subst, $str); echo $result;
Output for git.master, git.master_jit, rfc.property-hooks
this is sample <a href='somelink.php'>text</a> about something what is <a href='somelink.php'>text</a>. this is sample <a href='somelink.php'>text</a> about something what is <a href='somelink.php'>text</a>.

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