I am trying to loop through some json files, and combine them into one json file. My plan is to have a global $allData
array, and just merge new candidates into them.
<?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. How can I combine multiple json files into one?
I would like the following result:
1.json:
{"date":"10"},{"comment":"some comment"},{"user":"john"}
2.json:
{"date":"11"},{"comment":"another quote"},{"comment":"jim"}
combined.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.
[{"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:
$result = array_merge($allData,$data);
You want to be merging each new $data
array onto a growing $allData
array right? I think you want to do this instead:
$allData = array_merge($allData,$data);
Also you can get rid of this, it's not necessary.
if($count == 0){
$allData = $data;
}
As stated before, $result = array_merge($allData,$data);
is the best way to merge arrays. This code works to merge the two, however, the problem was that my json was not properly formed.
I didn't have []
around my two files, so they could not be merged properly.
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......
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.