How to get the only first images in array inside array - php

Question

Here i have one array(first array) inside i have one more array(second array), now i want to display only first image from second array(galleryImages) , how can do this. i tried but i am not able to get the results
print_r($response);
Array
(
[0] => stdClass Object
(
[gallery_id] => 2
[title] => Annual Day 2017
[description] =>
[galleryImages] => ["1.jpg","2.jpg","3.jpg","4.jpg"]
[reg_on] => 2017-05-17 01:55:12
[created_by] => rajeshdash123#gmail.com
[school_id] => 2
[status] => 0
)
[1] => stdClass Object
(
[gallery_id] => 3
[title] => Sports Day
[description] =>
[galleryImages] => ["1.jpg","2.jpg","3.jpg"]
[reg_on] => 2017-05-17 01:55:36
[created_by] => rajeshdash123#gmail.com
[school_id] => 2
[status] => 0
)
)
Expected Results
{
"status": "Success",
"data": [
{
"gallery_id": "2",
"title": "Annual Day 2017",
"description": "",
"galleryImagesCount": 4,
"gallery":"1.jpg"
},
{
"gallery_id": "3",
"title": "Sports Day 2017",
"description": "",
"galleryImagesCount": 4,
"gallery":"1.jpg"
}
],
}
I tried like this but is i am not getting the exact results
$images = array();
foreach ($response as $key => $value)
{
$img['gallery_id'] = $value->gallery_id;
$img['title'] = $value->title;
$img['description'] = $value->description;
$img['galleryImagesCount'] = count(json_decode($value->galleryImages,true));
$img['gallery'] = json_decode($value->galleryImages,true);
array_push($images,$img);
}
$return=array('status'=>"Success",'Images'=>$images);
echo json_encode($return);
Getting Results
{
"status": "Success",
"Images": [
{
"gallery_id": "2",
"title": "Annual Day 2017",
"description": "",
"galleryImagesCount": 4,
"gallery": [
"d17ac9d0aeb6435eaa294e0d69d4cc8f.jpg",
"a91945e0cf55379f51cf5faef10d7a4a.jpg",
"2d1501045ddbb3ccc238e70f9af05027.jpg",
"071c3b5f969bed1d1e2ee4b6531e4444.jpg"
]
},
{
"gallery_id": "3",
"title": "Sports Day",
"description": "",
"galleryImagesCount": 4,
"gallery": [
"f0ba574fd46a01ff5a41855a97c710ca.jpg",
"1d10802f1b74e660117f36bd6dd0aa26.jpg",
"e705fb66f767a1b914200ca8d3cae700.jpg",
"3d5d8828331e13d3decc94021a64e5ca.jpg"
]
}
]
}
Here what happening means gallery is coming an array , for me don't want array i need first image only, please check my expected results, update the answer
Updated expected results
{
"status": "Success",
"Images": [
{
"gallery_id": "2",
"title": "Annual Day 2017",
"description": "",
"galleryImagesCount": 4,
"gallery": [
{
"galleryimage": "1.jpg"
},
{
"galleryimage": "2.jpg"
}
]
},
{
"gallery_id": "3",
"title": "Sports Day",
"description": "",
"galleryImagesCount": 4,
"gallery": [
{
"galleryimage": "1.jpg"
},
{
"galleryimage": "2.jpg"
}
]
}
]
}

Answer 1

Instead of [galleryImages] => ["1.jpg","2.jpg","3.jpg"], use for loop to iterate through galleryImages.
Create an associative array with key =>value pair like [galleryImages] => ["galleryimage1" => "1.jpg", "galleryimage2" => "2.jpg", "galleryimage3" => "3.jpg"].
While json_decode you will get intended output.

Answer 2

My changes and explanations are in the code block:
Code: (Demo)
// assumed that previous line was something like $response=json_decode($json);
$response=[
(object)[
'gallery_id'=>2,
'title'=>'Annual Day 2017',
'description'=>'',
'galleryImages'=>["1.jpg","2.jpg","3.jpg","4.jpg"],
'reg_on'=>'2017-05-17 01:55:12',
'created_by'=>'rajeshdash123#gmail.com',
'school_id'=>2,
'status'=>0
],
(object)[
'gallery_id'=>3,
'title'=>'Sports Day',
'description'=>'',
'galleryImages'=>["1.jpg","2.jpg","3.jpg"],
'reg_on'=>'2017-05-17 01:55:36',
'created_by'=>'rajeshdash123#gmail.com',
'school_id'=>2,
'status'=>0
]
];
foreach ($response as $value){ // removed $key=> because it was unnecessary
$img['gallery_id'] = $value->gallery_id;
$img['title'] = $value->title;
$img['description'] = $value->description;
$img['galleryImagesCount'] = count($value->galleryImages); // removed json_decode()
$img['gallery'] = $value->galleryImages[0]; // removed json_decode and added [0] to access first
$images[]=$img; // swapped push() call with identical function-less "push"
}
if(isset($images)){ // added this condition to ensure there was something to return
$return=array('status'=>"Success",'Images'=>$images);
//var_export($return);
echo json_encode($return);
}else{
// enter some sort of error message / default behavior
}
Output:
{"status":"Success","Images":[{"gallery_id":2,"title":"Annual Day 2017","description":"","galleryImagesCount":4,"gallery":"1.jpg"},{"gallery_id":3,"title":"Sports Day","description":"","galleryImagesCount":3,"gallery":"1.jpg"}]}