How to Assign Variables in Laravel Blade Templates: @php or Custom @define?

Assigning Variables in Laravel Blade Templates: An Elegant Solution

When working with Laravel Blade templates, you may encounter the need to assign variables for later use within the template. While you can use the {{ }} syntax for echoing values, it can be inconvenient when you don't want to output the variable.

Instead of resorting to statements, you have a more elegant option:

Using the @php Directive

The @php directive allows you to execute PHP code within a Blade template without echoing its output. This directive is primarily used for defining variables:

@php
$old_section = "whatever";
@endphp

Extended Version of @php

For multiple variable assignments, you can use the full form of the @php directive:

@php
$i = 1;
$j = 2;
@endphp

Simplified Version of @php

If you only need to define a single variable, you can use a simplified version of the @php directive:

@php($i = 1)

Advanced: Custom @define Tag

If you prefer a custom syntax, you can extend Blade to use a @define tag:

\Blade::extend(function($value) {
    return preg_replace('/\@define(.+)/', '<?php ; ?>', $value);
});

After this extension, you can simply use @define to assign variables:

@define $i = 1

This method allows you to use a syntax that is more consistent with your Laravel coding practices. Whether you choose the default @php directive or the custom @define tag, you now have a convenient way to assign variables in your Blade templates without cluttering your output.

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