Invalid argument in foreach loop in php - php

Question

So this below is the structure of JSON i have when I decode it in PHP, but for some reason I am having hard time to loop through this JSON object. I don't know how can I get each values of "incident","description","technique" from those array to save them In my DB.
array(1) {
["Access"]=>
array(2) {
[0]=>
array(3) {
["incident"]=>
string(19) "sssssssssssssssssss"
["description"]=>
string(10) "ssssssssss"
["technique"]=>
string(19) "Link "
}
[1]=>
array(3) {
["incident"]=>
string(18) "ssssssssssssssssss"
["description"]=>
string(0) ""
["technique"]=>
string(19) "Link "
}
}
}
So far I have this PHP code but it's returning me an error saying invalid argument in first foreach loop.
$objectFirst =($_POST['Access1']);
$data = json_decode($objectFirst,true);
foreach ($data->Access as $tech){
foreach($tech as $incident){
foreach($incident as $ss){
var_dump($ss->incident);
}
}
}

Answer 1

When you access the element with this notation, $data->Access, it means you try to access a property of the $data object. But in your case, $data is an array, therefore you have to use the array notation.
So it should be corrected as $data['Access']. One other issue in your code is the level of loops.
foreach ($data->Access as $tech){
foreach($tech as $incident){
foreach($incident as $ss){
var_dump($ss->incident);
}
}
}
The inner most loop is incorrect because $incident will contain a string, not an array. When you try to access $ss['incident'], it will fail. So just change it to:
foreach ($data['Access'] as $tech){
foreach($tech as $incident){
var_dump($incident);
}
}
Hope it helps!

Answer 2

<?php
$data = [
'access' =>
[
[
'foo' => 'I',
'bar' => 'got'
],
[
'foo' => 'a',
'bar' => 'big'
]
]
];
foreach($data['access'] as $array)
var_dump($array['foo'], $array['bar']);
Output:
string(1) "I"
string(3) "got"
string(1) "a"
string(3) "big"