How to print arrays inside array by Laravel blade?
Stefan Bogdanescu
Founder & Senior Architect · 2026-06-29
# How to Print Arrays Inside Arrays in Laravel Blade? Navigating Nested Data Iteration
When working with dynamic data passed from your backend to a Laravel Blade view, you frequently encounter nested arrays. Displaying this hierarchical information requires iterating through these structures using PHP's looping mechanisms. As a senior developer, understanding how to safely and effectively iterate over deeply nested data within the Blade environment is crucial for building dynamic and responsive user interfaces.
The scenario you present—iterating over an array where elements themselves contain other arrays (like your `id`, `name`, and `children` structure)—is very common. The key to mastering this lies in correctly nesting your Blade directives and handling potential null values gracefully.
## Understanding the Mechanism: PHP in Blade
It is important to remember that Laravel Blade is a templating engine built on top of PHP. When you use syntax like `@foreach`, you are executing standard PHP code within the view. Therefore, the complexity of iterating over nested arrays is handled by standard PHP looping constructs, which we then present inside the Blade file. There is no special "Blade array loop"; it's pure PHP execution rendered in HTML.
Let's use your provided data structure as the basis for our example:
```php
// Example data passed from the Controller to the View
$data = [
[
'id' => 1,
'name' => 'Enterprise',
'children' => [
[
'id' => 2,
'name' => 'name1',
'children' => [
[
'id' => 5,
'name' => 'name2',
'children' => null // Example of a missing child branch
]
]
]
],
[
'id' => 6,
'name' => 'name3',
'children' => [
[
'id' => 11,
'name' => 'name4',
'children' => null
]
]
]
]
]
]
];
```
## Implementing Nested Iteration in Blade
To print this structure effectively, we need nested `foreach` loops. The outer loop handles the main items, and the inner loop handles the children of each item. Crucially, we must use conditional logic (`@if`) to prevent errors when dealing with potentially missing or null child arrays.
Here is how you can structure the Blade file:
```blade
Data Hierarchy
@foreach ($data as $item){{ $item['name'] }} (ID: {{ $item['id'] }})
@if (isset($item['children']) && !empty($item['children']))Children:
-
@foreach ($item['children'] as $child)
-
Child Name: {{ $child['name'] }} (ID: {{ $child['id'] }})
{{-- Check if the child also has children before attempting to loop further --}}
@if (isset($child['children']) && !empty($child['children']))
Sub-Children found.
@elseNo further children for this item.
@endif
@endforeach
This item has no children defined.
@endif @endforeach ``` ### Explanation of Best Practices 1. **Outer Loop (`@foreach ($data as $item)`):** This iterates over the primary array, giving you access to each main entry (e.g., 'Enterprise'). 2. **Checking for Existence (`isset(...) && !empty(...)`):** Before attempting to loop through `$item['children']`, we must check if the key exists and if the array is not empty. This prevents fatal errors if a parent item simply lacks a `children` key, which is essential when dealing with complex data structures where relationships might be optional. 3. **Inner Loop (`@foreach ($item['children'] as $child)`):** This iterates over the nested array. 4. **Deep Nesting Check:** We repeat