我有两个JSON对象,我希望它合并为一个JSON对象。我不希望JSON数据被覆盖。我希望数据合并。
对象#1:(example1.json)
[{
"title": "xx",
"releaseYear": "2014",
},
{
"title": "yy",
"releaseYear": "2015"
}]
对象#2:(example2.json)
[{
"title": "yy",
"releaseYear": "2017"
}]
这是我目前正在使用的 PHP文件:
<?php
$jsonString = file_get_contents('example.json');
$jsonString2 = file_get_contents('example2.json');
$data = json_decode($jsonString, true);
$data2 = json_decode($jsonString2, true);
$op = array_merge_recursive( $data, $data2 );
$resJson = json_encode($op);
file_put_contents('example3.json', $resJson);
收到的输出:(example3.json)
[
{
"title":"xx",
"releaseYear":"2014"
},
{
"title":"yy",
"releaseYear":"2015"
},
{
"title":"yy",
"releaseYear":"2017"
}
]
必填项:
[{
"title": "xx",
"releaseYear": "2014"
},
{
"title": "yy",
"releaseYear": "2017"
}]
解决方案赞赏。我是Stackoverflow的新手,很遗憾我的格式错误,如果有的话。在此先感谢:)
答案 0 :(得分:1)
许多可能的解决方案。一个例子:
<?php
$data = json_decode('[{"title": "xx","releaseYear": "2014"},{"title": "yy","releaseYear": "2015"}]', true);
$data2 = json_decode('[{"title": "yy","releaseYear": "2017"}]', true);
$data = foo($data, 'title');
$data = foo($data2, 'title', $data);
$data = array_values($data);
var_export($data);
function foo($src, $prop, $target=array()) {
foreach($src as $o) {
$target[ $o[$prop] ] = $o;
}
return $target;
}