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<?php $var = array( '#tag', 'text #tag text', 'text #tag', 'text#tag', ); $res = preg_grep('/#(\S{1,24}+)/u', $var); print_r($res);
Output for git.master_jit, git.master, rfc.property-hooks
Array ( [0] => #tag [1] => text #tag text [2] => text #tag [3] => text#tag )

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