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<?php $s = "123, 123, 456, 456, 123, 123"; $arr = explode(",", $s); $str =""; Foreach(array_chunk($arr,2) as $sub){ $str .= trim(implode(",",$sub)) .",<br>\n"; } Echo $str;
Output for git.master, git.master_jit, rfc.property-hooks
123, 123,<br> 456, 456,<br> 123, 123,<br>

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