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<?php $configArray = array( 'grand_total' => array( 'after' => array( 0 => 'subtotal', ), 'before' => array(), '_code' => 'grand_total', ), 'discount' => array( 'after' => array(), 'before' => array('grand_total'), '_code' => 'discount', ), ); reset($configArray); $element = current($configArray); foreach ($configArray as $code => $data) { foreach ($data['before'] as $beforeCode) { if (!isset($configArray[$beforeCode])) { continue; } $configArray[$code]['before'] = array_unique( array_merge( $configArray[$code]['before'], $configArray[$beforeCode]['before'] ) ); $configArray[$beforeCode]['after'] = array_merge( $configArray[$beforeCode]['after'], array($code), $data['after'] ); $configArray[$beforeCode]['after'] = array_unique($configArray[$beforeCode]['after']); } foreach ($data['after'] as $afterCode) { if (!isset($configArray[$afterCode])) { continue; } $configArray[$code]['after'] = array_unique( array_merge( $configArray[$code]['after'], $configArray[$afterCode]['after'] ) ); $configArray[$afterCode]['before'] = array_merge( $configArray[$afterCode]['before'], array($code), $data['before'] ); $configArray[$afterCode]['before'] = array_unique($configArray[$afterCode]['before']); } } uasort($configArray, 'compareTotals'); print_r($configArray);
based on SvZG0
Output for 5.3.0 - 5.6.28, 7.0.0 - 7.1.0
Warning: uasort() expects parameter 2 to be a valid callback, function 'compareTotals' not found or invalid function name in /in/0NJSo on line 59 Array ( [grand_total] => Array ( [after] => Array ( [0] => subtotal [1] => discount ) [before] => Array ( ) [_code] => grand_total ) [discount] => Array ( [after] => Array ( ) [before] => Array ( [0] => grand_total ) [_code] => discount ) )
Output for hhvm-3.10.0 - 3.12.0
Warning: Invalid argument: function: method 'compareTotals' not found in /in/0NJSo on line 59 Array ( [grand_total] => Array ( [after] => Array ( [0] => subtotal [1] => discount ) [before] => Array ( ) [_code] => grand_total ) [discount] => Array ( [after] => Array ( ) [before] => Array ( [0] => grand_total ) [_code] => discount ) )
Output for 5.2.5 - 5.2.17
Warning: uasort(): Invalid comparison function in /in/0NJSo on line 59 Array ( [grand_total] => Array ( [after] => Array ( [0] => subtotal [1] => discount ) [before] => Array ( ) [_code] => grand_total ) [discount] => Array ( [after] => Array ( ) [before] => Array ( [0] => grand_total ) [_code] => discount ) )
Output for 4.3.9 - 5.2.4
Warning: uasort(): Invalid comparison function. in /in/0NJSo on line 59 Array ( [grand_total] => Array ( [after] => Array ( [0] => subtotal [1] => discount ) [before] => Array ( ) [_code] => grand_total ) [discount] => Array ( [after] => Array ( ) [before] => Array ( [0] => grand_total ) [_code] => discount ) )
Output for 4.3.0 - 4.3.8
Array ( [discount] => Array ( [after] => Array ( ) [before] => Array ( [0] => grand_total ) [_code] => discount ) [grand_total] => Array ( [after] => Array ( [0] => subtotal [1] => discount ) [before] => Array ( ) [_code] => grand_total ) )