Array splice with key name - php

Question

I have 2 arrays ($data_1 & $data_2) which have different value but have a relation, I want to merge those array, completely with key name
$data_1 =
'[
{
"fruit": "apple",
"weight": "15"
},
{
"fruit": "durian",
"weight": "50"
},
{
"fruit": "orange",
"weight": "10"
}
]';
$data_2 =
'[
{
"color": "red",
"thorn": "no"
},
{
"color": "green",
"thorn": "yes"
},
{
"color": "orange",
"thorn": "no"
}
]';
but I want to combine those array, then I have a full data like this:
$full_data =
'[
{
"fruit": "apple",
"weight": "15",
"color": "red",
"thorn": "no"
},
{
"fruit": "durian",
"weight": "50",
"color": "green",
"thorn": "yes"
},
{
"fruit": "orange",
"weight": "10",
"color": "orange",
"thorn": "no"
}
]';
I tried with array_splice()
for ($i=0; $i < count($data_2); $i++) {
array_splice($data_1[$i], 0, 0, $data_2[$i]);
}
but it returns with '0' and '1' not original key name...
'[
{
"fruit": "apple",
"weight": "15",
"0": "red",
"1": "no"
},
{
"fruit": "durian",
"weight": "50",
"0": "green",
"1": "yes"
},
{
"fruit": "orange",
"weight": "10",
"0": "orange",
"1": "no"
}
]';
I want to replace that '0' and '1' into the original key names

Answer 1

Use array_merge to merge two arrays.
$full_data = [];
for ($i=0; $i < count($data_2); $i++) {
$full_data[$i] = array_merge($data_1[$i], $data_2[$i]);
}

Answer 2

Simply, you could do it by
convert two arrays format json into two php arrays using json_decode function.
iterate over one of them and fill $full_data with values of two arrays respectively.
display the array with format json using json_encode function.
// 1.
$data1 = json_decode($data_1,true);
$data2 = json_decode($data_2,true);
// 2.
$full_data = [];
for ($i=0; $i < count($data1); $i++) {
$full_data[$i] = $data1[$i] + $data2[$i];
}
// 3.
echo(json_encode($full_data));
/*
[
{"fruit":"apple","weight":"15","color":"red","thorn":"no"},
{"fruit":"durian","weight":"50","color":"green","thorn":"yes"},
{"fruit":"orange","weight":"10","color":"orange","thorn":"no"}
]
*/