Retrieving json child with php (inside another foreach) - php

Question

I'm triying to retrieve some data from a json file, in this case the json file have a child call "photo" and that child storage several file names, I need to fetch those file names inside an outer foreach. Here is my code:
My JSON file looks like this:
{
"nigiri": [{
"code": "NS-1",
"title": "Maguro",
"description": "6pc tuna",
"price": "$10.00",
"photo": ["HD-21-a.jpg", "HD-21-b.jpg", "HD-21-c.jpg", "HD-21-c.jpg"]
}, {
"title": "Scottish",
"code": "NS-2",
"price": "$9.50",
"photo": ["HD-21-a.jpg", "HD-21-b.jpg", "HD-21-c.jpg", "HD-21-c.jpg"],
"description": "6pc salmon"
}, {
"title": "Buri",
"code": "NS-3",
"price": "$10.00",
"photo": "NS-3.jpg",
"description": "6pc Hamachi"
}]
}
And my PHP file looks like this:
<?php
$getfile = file_get_contents('backend/menu.json');
$jsonfile = json_decode($getfile);
$type = htmlentities($_GET["type"]);
if(empty($_GET['type']))
{
header('Location: index.php');
exit;
}
?>
// This way I only get the first value
<?php foreach ($jsonfile->$type as $index => $obj): ?>
<h2>Name of the plate: <?php echo $obj->title; ?></h2>
<img src="img/plates/thumbs/<?php echo $obj->photo; ?>" alt="<?php echo $obj->title; ?>">
<?php endforeach; ?>
// I want to retrieve the others values from the "photo" child but still inside the previous foreach. I've try this:
<?php foreach ($jsonfile->$type as $index => $obj): ?>
<h2>Name of the plate: <?php echo $obj->title; ?></h2>
<?php foreach ($jsonfile->$type->photo as $index => $photos): ?>
<img src="img/plates/thumbs/<?php echo $photos->photo; ?>" alt="<?php echo $obj->title; ?>">
<?php endforeach; ?>

Answer 1

Sometimes it's best just to stay in PHP rather than going in and out of HTML:
foreach ($jsonfile->$type as $obj) {
echo "<h2>Name of the plate: $obj->title</h2>\n";
$photos = is_array($obj->photo) ? $obj->photo : array($obj->photo);
foreach ($photos as $photo)
echo "<img src=\"img/plates/thumbs/$photo\" alt=\"$obj->title\">\n";
}
Note that since $photo may not be an array, we need to check first before we attempt to iterate it, and if it isn't, make it into one.
Output (for your sample data, with $type = "nigiri"):
<h2>Name of the plate: Maguro</h2>
<img src="img/plates/thumbs/HD-21-a.jpg" alt="Maguro">
<img src="img/plates/thumbs/HD-21-b.jpg" alt="Maguro">
<img src="img/plates/thumbs/HD-21-c.jpg" alt="Maguro">
<img src="img/plates/thumbs/HD-21-c.jpg" alt="Maguro">
<h2>Name of the plate: Scottish</h2>
<img src="img/plates/thumbs/HD-21-a.jpg" alt="Scottish">
<img src="img/plates/thumbs/HD-21-b.jpg" alt="Scottish">
<img src="img/plates/thumbs/HD-21-c.jpg" alt="Scottish">
<img src="img/plates/thumbs/HD-21-c.jpg" alt="Scottish">
<h2>Name of the plate: Buri</h2>
<img src="img/plates/thumbs/NS-3.jpg" alt="Buri">

Answer 2

Your mean is you want output photo if you have a lot photos?
<?php foreach ($jsonfile->$type as $index => $obj): ?>
<h2>Name of the plate: <?php echo $obj->title; ?></h2>
<?php if (is_array($obj->photo)): ?>
<?php foreach ($jsonfile->$type->photo as $index => $photos): ?>
<img src="img/plates/thumbs/<?php echo $photos->photo; ?>" alt="<?php echo $obj->title; ?>">
<?php endforeach; ?>
<?php else ?>
<img src="img/plates/thumbs/<?php echo $obj->photo; ?>" alt="<?php echo $obj->title; ?>">
<?php endif; ?>
<?php endforeach; ?>

Answer 3

You must use nested loops. Something like that:
<?php
$getfile = file_get_contents('backend/menu.json');
$jsonfile = json_decode($getfile);
$type = htmlentities($_GET["type"]);
if(empty($_GET['type']))
{
header('Location: index.php');
exit;
}
?>
<?php foreach ($jsonfile->$type as $index => $obj): ?>
<h2>Name of the plate: <?php echo $obj->title; ?></h2>
<?php if(is_array($obj->photo)): ?>
<?php foreach ($obj->photo as $photo): ?>
<img src="img/plates/thumbs/<?php echo $photo; ?>" alt="<?php echo $obj->title; ?>">
<?php endforeach; ?>
<?php else: ?>
<img src="img/plates/thumbs/<?php echo $obj->photo; ?>" alt="<?php echo $obj->title; ?>">
<?php endif; ?>
<?php endforeach; ?>