php多维数组把value值赋值到key
php多维数组把value值赋值到key，改成这种效果，怎么做
"image": [
{
"local_path": "/upload/14d4aaf3c5ef5b93e6c4c7418428ea71.jpg",
"picture_id": 1
},
{
"local_path": "/upload/14d4aaf3c5ef5b93e6c4c7418428ea71.jpg",
"picture_id": 2
},
{
"local_path": "/upload/14d4aaf3c5ef5b93e6c4c7418428ea71.jpg",
"picture_id": 3
}
]
改成：
"image": [
{
"1": "/upload/14d4aaf3c5ef5b93e6c4c7418428ea71.jpg",
"picture_id": 1
},
{
"2": "/upload/14d4aaf3c5ef5b93e6c4c7418428ea71.jpg",
"picture_id": 2
},
{
"3": "/upload/14d4aaf3c5ef5b93e6c4c7418428ea71.jpg",
"picture_id": 3
}
]
------解决思路----------------------
<br /><br /><?php<br /><br /><br />$arr=array(<br /> array(<br /> 'local_path' =>'aaaaa',<br /> 'picture_id' =>1<br /> ),<br /> array(<br /> 'local_path'=>'bbbbbbb',<br /> 'picture_id'=>2<br /> ),<br /> array(<br /> 'local_path'=>'ccccccc',<br /> 'picture_id'=>3<br /> ),<br /> );<br /><br /> function change($arrr,$a=0){<br /> foreach($arrr as $key=>$value){<br /> $arr[$a][$value['picture_id']]=$value['local_path'];<br /> $arr[$a]['picture_id']=$value['picture_id'];<br /> $a++; <br /> <br /> }<br /> return $arr;<br /> }<br /> <br /> <br /> $arry=change($arr);<br /> <br /> print_r($arry);<br /> <br /> <br /> ?> <br />$s =<<< TXT<br /> "image": [<br /> {<br /> "local_path": "/upload/14d4aaf3c5ef5b93e6c4c7418428ea71.jpg",<br /> "picture_id": 1<br /> },<br /> {<br /> "local_path": "/upload/14d4aaf3c5ef5b93e6c4c7418428ea71.jpg",<br /> "picture_id": 2<br /> },<br /> {<br /> "local_path": "/upload/14d4aaf3c5ef5b93e6c4c7418428ea71.jpg",<br /> "picture_id": 3<br /> }<br /> ]<br />TXT;<br />$a = json_decode('{'. $s .'}', 1);<br /><br />foreach($a['image'] as &$item) {<br /> $item = array(<br /> $item['picture_id'] => $item['local_path'],<br /> 'picture_id' => $item['picture_id']<br /> );<br />}<br />print_r($a);Array<br />(<br /> [image] => Array<br /> (<br /> [0] => Array<br /> (<br /> [1] => /upload/14d4aaf3c5ef5b93e6c4c7418428ea71.jpg<br /> [picture_id] => 1<br /> )<br /><br /> [1] => Array<br /> (<br /> [2] => /upload/14d4aaf3c5ef5b93e6c4c7418428ea71.jpg<br /> [picture_id] => 2<br /> )<br /><br /> [2] => Array<br /> (<br /> [3] => /upload/14d4aaf3c5ef5b93e6c4c7418428ea71.jpg<br /> [picture_id] => 3<br /> )<br /><br /> )<br /><br />)<br />
echo json_encode($a, JSON_PRETTY_PRINT <br><font color='#FF8000'>------解决思路----------------------</font><br> JSON_UNESCAPED_SLASHES);
{<br /> "image": [<br /> {<br /> "1": "/upload/14d4aaf3c5ef5b93e6c4c7418428ea71.jpg",<br /> "picture_id": 1<br /> },<br /> {<br /> "2": "/upload/14d4aaf3c5ef5b93e6c4c7418428ea71.jpg",<br /> "picture_id": 2<br /> },<br /> {<br /> "3": "/upload/14d4aaf3c5ef5b93e6c4c7418428ea71.jpg",<br /> "picture_id": 3<br /> }<br /> ]<br />}<br />
