How to use Laravel Blade's dynamic templates via View::first

This article mainly introduces you to the relevant information on how to use Laravel Blade's dynamic template through View::first. The article introduces it in detail through the example code, which has certain reference learning value for everyone to learn or use PHP. Friends who need it can come and take a look.

Preface

This article mainly introduces the relevant content about View::first using Laravel Blade dynamic template, and shares it for your reference. Learning, I won’t say much more below, let’s take a look at the detailed introduction.

When creating dynamic components or pages, sometimes we want to display a custom template when it exists, otherwise display the default template.

For example, when we create a page module, we usually need to customize templates for "About Us" and "Contact Us" (such as displaying photos or contact forms), while "Our Services" can use the default template.

We can judge whether the custom template exists through a series of if judgments or use view()->exists() . However, Laravel 5.5 brings us a more Elegant way to implement this functionality.

View::first can be used using the

##view()->first() method. Let us replace the following code

if (view()->exists('custom-template')) {
 return view('custom-template', $data);
}
 
return view('default-template', $data);

with a more concise version:

return view()->first(
  ['custom-template', 'default-template'], $data
);

An array must be passed to the first parameter of this method. When the first one exists, it will use it.

Of course, you can pass any number of templates, and you can even use dynamic names:

return view()->first([
  "pages/{$page->slug}",
  "pages/category-{$page->category->slug}",
  "pages/default-template"
], $data);

In addition, you can also pass this feature of the Facade version:

\View::first($templates, $data)

This Blade method of dynamically selecting templates was introduced in Laravel 5.5, which makes processing dynamic templates more concise and does not require additional conditional judgments.

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