Access to a nested array on a JSON in PHP? - php

Question

This is the code, it use a foreach to access to department and workers .
EDIT: Will correct several paste errors
<?php
$json = '{
"boss": "Jeff",
"department": [{
"office": "1111",
"workers": "[{\"id_work\":\"123\",\"name\":\"mike\",\"mobile\":\"12345\"}]"
}]}';
$json_data = json_decode($json);
echo "Boss:".$json_data->boss;
echo "<br>";
foreach($json_data->deparment as $dep)
{
echo "Office number:".$dep->office."<br>";
foreach($dep->workers as $worker){
echo "Worker ID: ".$worker->id_work."<br>";
echo "Worker name : ".$worker->name."<br>";
echo "Worker mobil: ".$worker->mobil."<br>";
}
}
?>
I cannot access to internal array when I try do a foreach() this happens :
Invalid argument supplied for foreach()
How I can access to the information of the nested array

Answer 1

The json data inside $json is wrong. The decode didn't gave errors but the array you get back is not how you want it to be, that's why you get errors after json_decode.
The error you got was because the worker value is in string format.
You should update that:
From: "workers": "[{\"id_work\":\"123\",\"name\":\"mike\",\"mobile\":\"12345\"}]"
To: "workers": [{ "id_work": "123", "name": "mike", "mobile":"12345"}]
End result:
$json = '{
"boss": "Jeff",
"department": [{
"office": "1111",
"workers": [{ "id_work": "123", "name": "mike", "mobile":"12345"}]
}]}';
$json_data = json_decode($json);
echo "Boss:".$json_data->boss;
echo "<br>";
foreach($json_data->department as $dep)
{
echo "Office number:".$dep->office."<br>";
foreach($dep->workers as $worker){
echo "Worker ID: ".$worker->id_work."<br>";
echo "Worker name : ".$worker->name."<br>";
echo "Worker mobil: ".$worker->mobile."<br>";
}
}