Pass array to Laravel view and use that array as VueJS prop
Stefan Bogdanescu
Founder & Senior Architect · 2026-06-29
# Passing Arrays from Laravel Views to VueJS Props: The Serialization Bridge
As a senior developer working with the Laravel and Vue ecosystem, you frequently encounter scenarios where data needs to flow seamlessly between the backend rendering layer (Blade) and the frontend component logic (VueJS). One common hurdle is passing complex PHP data structures, like arrays, into HTML attributes or props in a way that JavaScript can correctly interpret them.
The error you are encounteringâ`htmlentities() expects parameter 1 to be string, array given`âis a classic symptom of this mismatch. HTML attributes expect string values. When PHP tries to output an array directly into the view context, it results in an unexpected type being passed to the templating engine, which then throws an error when trying to escape it as an HTML entity.
This guide will walk you through the proper, robust method for passing arrays from your Laravel backend to a VueJS component as props, focusing on correct serialization and deserialization techniques.
---
## Diagnosing the Data Flow Issue
The core problem lies in how PHP data interacts with HTML attributes versus JavaScript expectations. When you use `{{ $files }}` in Blade, if `$files` is an array, Laravel attempts to convert it to a string, which often results in the error when placed directly into an attribute context like `screenshots="..."`.
To bridge this gap effectively, we must ensure that any complex PHP structure (like arrays or objects) is explicitly converted into a standard string format that both the HTML parser and JavaScript can reliably handle. The solution is to use `json_encode()` on the server-side and `JSON.parse()` on the client-side.
## The Solution: JSON Serialization as the Bridge
The most reliable way to pass structured data between Laravel and Vue is by leveraging JSON (JavaScript Object Notation). JSON is a universally understood string format, making it perfect for this cross-framework communication.
### Step 1: Preparing Data in the Laravel Controller
Before passing data to the view, ensure your array is encoded as a JSON string. While you are already using `json_decode` to retrieve data from the database, you need to encode it when sending it to the view so the Blade engine treats it as safe text.
If `$files` is an array retrieved from your model:
```php
public function edit($sub_domain, $id)
{
$ticket = Ticket::with('screenshots')->find($id);
// Ensure screenshots are handled correctly. If they come back as JSON strings
// from the DB, json_decode is correct for PHP processing.
$screenshotsData = $ticket->screenshots; // Assuming this is an array or JSON string from the model
// Encode the data into a JSON string before passing it to the view.
$filesJson = json_encode($screenshotsData);
return view('templates.tickets-single', compact('ticket', 'filesJson'));
}
```
### Step 2: Passing Data in the Blade Template
In your Blade file, you now pass the encoded JSON string directly into the HTML attribute. This ensures that what the browser receives is a valid string, resolving the `htmlentities()` error.
**Your updated Blade template:**
```html
@section('content')
@endsection
```
Notice how we pass `$filesJson` instead of the raw PHP array. By encoding it, you are delivering a string that JavaScript can immediately parse. This pattern is fundamental when building dynamic interfaces in Laravel applications, following principles discussed in modern Laravel development practices.
### Step 3: Consuming Data in the Vue Component
In your Vue component, the received `screenshots` prop will be a stringified JSON object. You must explicitly parse it back into a usable JavaScript array within your component's lifecycle hooks (like `created` or `mounted`).
**Your Vue Component Script:**
```javascript
export default {
template: '#edit-ticket-template',
props: ['SingleTicket', 'screenshots'], // Receives the JSON string here
data: function() {
return {
ticket: [],
screenshots: []
};
},
methods: {
getTicket() {
// Parse the received string back into a JavaScript object/array
this.ticket = JSON.parse(this.SingleTicket);
},
getScreenshots() {
// Crucial step: Parse the incoming JSON string into an array
this.screenshots = JSON.parse(this.screenshots);
},
// ... other methods
},
created: function() {
this.getTicket();
this.getScreenshots(); // Now this successfully uses the parsed array!
},
// ...
}
```
## Conclusion
The key takeaway for bridging Laravel and Vue when dealing with arrays is to treat data transfer as a serialization problem. Never pass raw PHP arrays directly into HTML attributes intended for JavaScript consumption. By using `json_encode()` on the server side and `JSON.parse()` on the client side, you establish a robust, type-safe bridge. This approach ensures your application remains clean, secure, and adheres to best practices for modern full-stack development. For more architectural guidance on structuring data flows in Laravel, always refer to resources like [Laravel Company](https://laravelcompany.com).