php關於數組的有關問題

php關於數組的問題

array (size=3)
  0 => 
    array (size=3)
      0 => 
        array (size=3)
          'welfareName' => string '包吃住' (length=9)
          'welfareIco' => string 'url_1' (length=5)
          'xyId' => int 1
      1 => 
        array (size=3)
          'welfareName' => string '頭等艙' (length=9)
          'welfareIco' => string 'url_2' (length=5)
          'xyId' => int 1
      2 => 
        array (size=3)
          'welfareName' => string '有車' (length=6)
          'welfareIco' => string 'url_4' (length=5)
          'xyId' => int 1
  1 => 
    array (size=2)
      0 => 
        array (size=3)
          'welfareName' => string '頭等艙' (length=9)
          'welfareIco' => string 'url_2' (length=5)
          'xyId' => int 2
      1 => 
        array (size=3)
          'welfareName' => string '買買買' (length=9)
          'welfareIco' => string 'url_3' (length=5)
          'xyId' => int 2
 
---------------------------------------------------------
array (size=3)
  0 => 
    array (size=11)
      'xyId' => int 1
      'xyLocation' => string '首爾' (length=6)
      'commentNum' => int 3
      'visitorNum' => int 1
  1 => 
    array (size=11)
      'xyId' => int 2
      'xyLocation' => string '東京' (length=6)
      'commentNum' => int 0
      'visitorNum' => int 1
--------------------------------------------------------------------------------
array (size=3)
  0 => 
    array (size=11)
      'xyId' => int 1
      'xyLocation' => string '首爾' (length=6)
      'commentNum' => int 3
      'visitorNum' => int 1
      'welfare' =>
array (size=3)
  0 => 
array (size=3)
  'welfareName' => string '包吃住' (length=9)
  'welfareIco' => string 'url_1' (length=5)
  'xyId' => int 1
  1 => 
array (size=3)
  'welfareName' => string '頭等艙' (length=9)
  'welfareIco' => string 'url_2' (length=5)
  'xyId' => int 1
  2 => 
array (size=3)
  'welfareName' => string '有車' (length=6)
  'welfareIco' => string 'url_4' (length=5)
  'xyId' => int 1
       
  1 => 
    array (size=11)
      'xyId' => int 2
      'xyLocation' => string '東京' (length=6)
      'commentNum' => int 0
      'visitorNum' => int 1
  'welfare' => 
array (size=2)
  0 => 
array (size=3)
  'welfareName' => string '頭等艙' (length=9)
  'welfareIco' => string 'url_2' (length=5)
  'xyId' => int 2
  1 => 
array (size=3)
  'welfareName' => string '買買買' (length=9)
  'welfareIco' => string 'url_3' (length=5)
  'xyId' => int 2

------解決思路----------------------

for($i=0; $i  $數組3[$i] = $數組2;
  $數組3[$i]['welfare'] = @$數組1[$i];
}

------解決思路----------------------

$arr1=array(
    array (
        array (
          'welfareName' => '包吃住',
          'welfareIco' => 'url_1',
          'xyId' => 1
  ),
array (
          'welfareName' => '頭等艙',
          'welfareIco' => 'url_2',
          'xyId' =>1
  ),
array (
          'welfareName' =>'有車',
          'welfareIco' => 'url_4',
          'xyId' =>1
  )
),
  array (
      array (
          'welfareName' => '頭等艙',
          'welfareIco' => 'url_2',
          'xyId' =>2
 ),
      array (
          'welfareName' => '買買買',
          'welfareIco' => 'url_3',
          'xyId' =>2
  )
)
);
$arr2=array(
array (
      'xyId' => 1,
      'xyLocation' => '首爾',
      'commentNum' =>3,
      'visitorNum' =>1,
  ),
array (
      'xyId' =>  2,
      'xyLocation' =>  '東京',
      'commentNum' =>  0,
      'visitorNum' =>  1,
  )
);
foreach($arr1 as $k=>$v){
$new[$v[0]['xyId']]=$v;
}
foreach($arr2 as $k=>$v){
$arr2[$k]['welfare']=$new[$v['xyId']];
}

