I'm trying to parse a JSON file using PHP. But now I'm stuck.
This is the content of my JSON file:
2
401{
"John": {
"status":"Wait"
},
"Jennifer": {
"status":"Active"
},
"James": {
"status":"Active",
"age":56,
"count":10,
"progress":0.0029857,
"bad":0
}
}
Here's what I've tried so far:
<?php
$string = file_get_contents("/home/michael/test.json");
$json_a = json_decode($string, true);
echo $json_a['John'][status];
echo $json_a['Jennifer'][status];
But since I don't know the names (e.g. 'John', 'Jennifer') and all available keys and values (e.g. 'age', 'count') Beforehand, I think I need to create some foreach loops.
I wish there was an example.
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
I can't believe so many people are posting answers without reading the JSON properly.
If you iterate over
$json_aalone, you'll get an object of objects. Even if you pass intrueas the second parameter, you have a 2D array. If you loop over the first dimension, you can't echo the second dimension like this. So this is wrong:foreach ($json_a as $k => $v) { echo $k, ' : ', $v; }To echo everyone's status, try the following:
$person_a) { echo $person_a['status']; } ?>To iterate over a multi-dimensional array, you can use RecursiveArrayIterator
$jsonIterator = new RecursiveIteratorIterator( new RecursiveArrayIterator(json_decode($json, TRUE)), RecursiveIteratorIterator::SELF_FIRST); foreach ($jsonIterator as $key => $val) { if(is_array($val)) { echo "$key:\n"; } else { echo "$key => $val\n"; } }Output:
Run on keyboard