php关于数组的问题
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 '头等舱' (length=9)
'welfareico' => string 'url_2' (length=5)
'xyid' => int 1
2 =>
array (size=3)
'welfarename' => string '有车' (length=6)
'welfareico' => string 'url_4' (length=5)
'xyid' => int 1
1 =>
array (size=2)
0 =>
array (size=3)
'welfarename' => string '头等舱' (length=9)
'welfareico' => string 'url_2' (length=5)
'xyid' => int 2
1 =>
array (size=3)
'welfarename' => string '买买买' (length=9)
'welfareico' => string 'url_3' (length=5)
'xyid' => int 2
---------------------------------------------------------
array (size=3)
0 =>
array (size=11)
'xyid' => int 1
'xylocation' => string '首尔' (length=6)
'commentnum' => int 3
'visitornum' => int 1
1 =>
array (size=11)
'xyid' => int 2
'xylocation' => string '东京' (length=6)
'commentnum' => int 0
'visitornum' => int 1
--------------------------------------------------------------------------------
array (size=3)
0 =>
array (size=11)
'xyid' => int 1
'xylocation' => string '首尔' (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 '头等舱' (length=9)
'welfareico' => string 'url_2' (length=5)
'xyid' => int 1
2 =>
array (size=3)
'welfarename' => string '有车' (length=6)
'welfareico' => string 'url_4' (length=5)
'xyid' => int 1
1 =>
array (size=11)
'xyid' => int 2
'xylocation' => string '东京' (length=6)
'commentnum' => int 0
'visitornum' => int 1
'welfare' =>
array (size=2)
0 =>
array (size=3)
'welfarename' => string '头等舱' (length=9)
'welfareico' => string 'url_2' (length=5)
'xyid' => int 2
1 =>
array (size=3)
'welfarename' => string '买买买' (length=9)
'welfareico' => string 'url_3' (length=5)
'xyid' => int 2

------解决思路----------------------
for($i=0; $i '包吃住',
'welfareico' => 'url_1',
'xyid' => 1
),
array (
'welfarename' => '头等舱',
'welfareico' => 'url_2',
'xyid' =>1
),
array (
'welfarename' =>'有车',
'welfareico' => 'url_4',
'xyid' =>1
)
),
array (
array (
'welfarename' => '头等舱',
'welfareico' => 'url_2',
'xyid' =>2
),
array (
'welfarename' => '买买买',
'welfareico' => 'url_3',
'xyid' =>2
)
)
);
$arr2=array(
array (
'xyid' => 1,
'xylocation' => '首尔',
'commentnum' =>3,
'visitornum' =>1,
),
array (
'xyid' => 2,
'xylocation' => '东京',
'commentnum' => 0,
'visitornum' => 1,
)
);
foreach($arr1 as $k=>$v){
$new[$v[0]['xyid']]=$v;
}
foreach($arr2 as $k=>$v){
$arr2[$k]['welfare']=$new[$v['xyid']];
}