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<?php $types = array( array('type' => 'AAA', 'label_id' => 'A1,35'), array('type' => 'AAA', 'label_id' => 'A2,34'), array('type' => 'BBB', 'label_id' => 'B1,29'), array('type' => 'CCC', 'label_id' => 'C1,20'), array('type' => 'CCC', 'label_id' => 'C2,19'), array('type' => 'CCC', 'label_id' => 'C3,18') ); $grouped_types = array(); foreach($types as $type){ $grouped_types[$type['type']][] = $type; } var_export($grouped_types);

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