Laravel Enum, Float and CSS

Introduction

In this article, we will discuss three different topics that are related to web development, these topics are:

• Laravel Enum
• Float
• CSS

We will start by explaining what each of these topics is and then give some examples of how to use them in your web projects.

Laravel Enum

Laravel Enum is a feature that allows you to define a set of valid values for a property in your model. This can be useful when you want to restrict the possible values of a string or integer field.

The syntax for using Enums is relatively simple. First, you define the possible values in an array, and then you add a property to your model that uses the Enum class.

Here is an example:

class User extends Model
{
    use HasFactory;

    protected $fillable = [
        'name',
        'email',
        'password',
        'role',
    ];

    protected $casts = [
        'role' => UserRole::class,
    ];
}

class UserRole extends Enum
{
    const ADMIN = 'admin';
    const USER = 'user';
}

In the above example, we have created a UserRole Enum class that has two possible values: admin and user. We have then added a role property to our User model that uses the UserRole class.

Float

Float is a data type that allows you to store decimal values. It is commonly used in web development to represent prices, measurements, and other values where precision is required.

When it comes to working with Floats in PHP, there are a few things to keep in mind. Firstly, you should always use the number_format function to format your floats with the desired precision.

Secondly, you should avoid using floats for financial calculations due to rounding errors. Instead, you should use a decimal library such as BC Math or GMP.

Here is an example of using number_format to format a float:

$price = 19.99;

$priceFormatted = number_format($price, 2);

echo $priceFormatted;

In this example, we have a float variable called $price that we want to format with two decimal places. We have used the number_format function to achieve this.

CSS

CSS (Cascading Style Sheets) is a language used to style HTML elements. With CSS, you can change the appearance of your elements, such as text color, font size, background color, and more.

CSS works by applying rules to HTML elements using selectors. For example, you could select all <p> tags and apply a specific text color to them.

Here is an example of using CSS:

p {
    font-size: 16px;
    color: #333;
    line-height: 1.5;
}

In this example, we have applied three CSS rules to all <p> tags. We have set the font size to 16 pixels, the text color to #333 (a dark gray), and the line height to 1.5.

Conclusion

In this article, we have covered three important topics: Laravel Enum, Float, and CSS. We hope that this article has given you a better understanding of how these topics work and how you can use them in your web development projects.