[英]php merge json arrays into one array
I am trying to loop through some json files, and combine them into one json file.我试图遍历一些 json 文件,并将它们组合成一个 json 文件。 My plan is to have a global
$allData
array, and just merge new candidates into them.我的计划是拥有一个全局
$allData
数组,并将新的候选者合并到其中。
<?php
$allData = array();
$count = 0;
if ($handle = opendir('./json/')) {
while (false !== ($entry = readdir($handle))) {
if ($entry != "." && $entry != "..") {
echo $entry."<br />";
$source_file = file_get_contents('./json/'.$entry);
$data = json_decode($source_file,TRUE);
if($data != null){
$allData = array_merge($allData,$data);
echo "<br /><br /><br /><br /> !!!! <br /><br /><br /><br />";
print_r($allData);
}
else{
echo "Invalid Json File";
} //end else
}
closedir($handle);
}
echo "<br /><br /><br /><br /> !!!! <br /><br /><br /><br />";
print_r($allData);
However, the merge is overwriting the file.但是,合并会覆盖文件。 How can I combine multiple json files into one?
如何将多个json文件合并为一个?
I would like the following result:我想要以下结果:
1.json: 1.json:
{"date":"10"},{"comment":"some comment"},{"user":"john"}
2.json: 2.json:
{"date":"11"},{"comment":"another quote"},{"comment":"jim"}
combined.json组合.json
[{"date":"10"},{"comment":"some comment"},{"user":"john"},
{"date":"11"},{"comment":"another quote"},{"comment":"jim"}]
I am only getting one of these values after I merge the arrays.合并数组后,我只得到这些值之一。
[{"date":"25.4.2013 10:40:10"},{"comment":"some text"},{"comment":"some more text"},
[{"date":"25.4.2013 10:45:15"},{"comment":"another quote"},{"comment":"quote"}]]
Your merge is odd:你的合并很奇怪:
$result = array_merge($allData,$data);
You want to be merging each new $data
array onto a growing $allData
array right?您想将每个新的
$data
数组合并到一个不断增长的$allData
数组中,对吗? I think you want to do this instead:我认为你想这样做:
$allData = array_merge($allData,$data);
Also you can get rid of this, it's not necessary.你也可以摆脱这个,这是没有必要的。
if($count == 0){
$allData = $data;
}
As stated before, $result = array_merge($allData,$data);
如前所述,
$result = array_merge($allData,$data);
is the best way to merge arrays.是合并数组的最佳方式。 This code works to merge the two, however, the problem was that my json was not properly formed.
这段代码可以合并两者,但是,问题是我的 json 格式不正确。
I didn't have []
around my two files, so they could not be merged properly.我的两个文件周围没有
[]
,因此无法正确合并它们。
我的解决方案很糟糕,但它有效:我用逗号替换字符串一的 },删除第二个字符串的 { 并连接这两个字符串......
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