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<?php $array = array("Item1.10", "Item2.5", "Item3.0", "Item2.2", "Item4.50", "Item2.50"); $tempArray = array(); $newArray = array(); foreach($array as $value) { $item = explode(".", $value); if(!in_array($item[0], $tempArray)) { $newArray[] = $value; $tempArray[] = $item; } } print_r($newArray);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => Item1.10 [1] => Item2.5 [2] => Item3.0 [3] => Item2.2 [4] => Item4.50 [5] => Item2.50 )

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