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<?php $dates = ['20240228', '20240229', '20240301']; $text = ''; foreach ($dates as $i => $date) { $date = new DateTime($date); $month = $date->format('F'); $day = $date->format('j'); $pos = strpos($text, $month); if ($pos !== false) { $text = substr_replace($text, ", $day", $pos - 1, 0); } else { $text .= ($text ? ' & ' : '') . "$day $month"; } } echo $text;
Output for git.master, git.master_jit, rfc.property-hooks
28, 29 February & 1 March

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