求高效算法，合并多个多维数组值

例如
$a = array(
array(
'province'=>'ss',
'package' => array(
array(
'FX58'=>0,
'PName' => 'a'
),
),
'storeName'=> 'test',
),
array(
'province'=>'cc',
'package' => array(
array(
'FX58'=>1,
'PName' => 'b'
),
),
'storeName'=> 'test2',
)
);
$b = array(
array(
'province'=>'ss',
'package' => array(
array(
'FX58'=>1,
'PName' => 'a'
),
),
'storeName'=> 'test',
),
array(
'province'=>'cc',
'package' => array(
array(
'FX58'=>2,
'PName' => 'b'
),
),
'storeName'=> 'test2',
)
);
将b数组值统计到a数组中

回复讨论(解决方案)

这样？

$new=array_merge($a,$b);echo "
";print_r($new);echo "
";

分组键是哪个？

这样？

$new=array_merge($a,$b);echo "
";print_r($new);echo "
";

额 我需要的是将相同province,storeName,，pName中FX158数据统计起来

分组键是哪个？

将相同province,storeName,，pName中FX158数据统计起来

$a = array(  array(    'province'=>'ss',    'package' => array(      array(        'FX58'=>0,        'PName' => 'a'      ),    ),    'storeName'=> 'test',  ),  array(    'province'=>'cc',    'package' => array(      array(        'FX58'=>1,        'PName' => 'b'      ),    ),    'storeName'=> 'test2',  ));$b = array(  array(    'province'=>'ss',    'package' => array(      array(        'FX58'=>1,        'PName' => 'a'      ),    ),    'storeName'=> 'test',  ),  array(    'province'=>'cc',    'package' => array(      array(        'FX58'=>2,        'PName' => 'b'      ),    ),    'storeName'=> 'test2',  ));foreach($a as $v) {  foreach($v['package'] as $t) {    $res[$v['province']][$v['storeName']][$t['PName']] = $t['FX58'];  }}foreach($b as &$v) {  foreach($v['package'] as $t) {    $res[$v['province']][$v['storeName']][$t['PName']] += $t['FX58'];  }}foreach($a as &$v) {  foreach($v['package'] as &$t) {    $t['FX58'] = $res[$v['province']][$v['storeName']][$t['PName']];  }}print_r($a);

Array(    [0] => Array        (            [province] => ss            [package] => Array                (                    [0] => Array                        (                            [FX58] => 1                            [PName] => a                        )                )            [storeName] => test        )    [1] => Array        (            [province] => cc            [package] => Array                (                    [0] => Array                        (                            [FX58] => 3                            [PName] => b                        )                )            [storeName] => test2        ))

$a = array(  array(    'province'=>'ss',    'package' => array(      array(        'FX58'=>0,        'PName' => 'a'      ),    ),    'storeName'=> 'test',  ),  array(    'province'=>'cc',    'package' => array(      array(        'FX58'=>1,        'PName' => 'b'      ),    ),    'storeName'=> 'test2',  ));$b = array(  array(    'province'=>'ss',    'package' => array(      array(        'FX58'=>1,        'PName' => 'a'      ),    ),    'storeName'=> 'test',  ),  array(    'province'=>'cc',    'package' => array(      array(        'FX58'=>2,        'PName' => 'b'      ),    ),    'storeName'=> 'test2',  ));foreach($b as $k=>$v){	for($i=0,$len=count($a); $i<$len; $i++){		if($a[$i]['province'] == $v['province'] && $a[$i]['package'][0]['PName']==$v['package'][0]['PName'] && $a[$i]['storeName']==$v['storeName']){			$a[$i]['package'][0]['FX58'] += $v['package'][0]['FX58'];		}	}}echo '
';print_r($a);echo '
';

Array(    [0] => Array        (            [province] => ss            [package] => Array                (                    [0] => Array                        (                            [FX58] => 1                            [PName] => a                        )                )            [storeName] => test        )    [1] => Array        (            [province] => cc            [package] => Array                (                    [0] => Array                        (                            [FX58] => 3                            [PName] => b                        )                )            [storeName] => test2        ))