How to set CSS and JavaScript variables in thinkphp

In recent years, with the rapid development of front-end development, more and more people have begun to regard CSS and JavaScript as one of the necessary skills in their work. As one of the most widely used frameworks among PHP developers, ThinkPHP also provides us with a lot of convenience when using CSS and JavaScript for page development. In this article, we will explain how to set CSS and JavaScript variables in ThinkPHP and how these variables are used in the user interface.

1. Set CSS variables

1.1 Define variables in the controller

First, define CSS variables in the controller. CSS variables can be assigned to template files by using the $this->assign() function. For example:

$this->assign('bg_color', '#ffffff'); // 将 #ffffff 赋值给 $bg_color

1.2 Using variables in template files

Next, we need to use variables in template files. This can be achieved by using the { $var_name } statement. In this case, we can use the $bg_color background color variable in the CSS file as follows:

body {
    background-color: { $bg_color };
}

1.3 Output the CSS

in the view file Finally, We need to output the CSS in the view file. This can be achieved by using the { volist } statement. In this example, we can output the CSS file in the following way:

<link>

2. Set JavaScript variables

2.1 Define variables in the controller

First, in the controller Define JavaScript variables in . JavaScript variables can be assigned to template files by using the $this->assign() function. For example:

$this->assign('user_id', 1001); // 将 1001 赋值给 $user_id

2.2 Using variables in template files

Next, we need to use variables in template files. This can be achieved by using the { $var_name } statement. In this case, we can use the $user_id user ID variable in the JavaScript file as follows:

var userId = { $user_id };

2.3 Output JavaScript

Finally, We need to output JavaScript in the view file. This can be achieved by using the { volist } statement. In this case, we can output the JavaScript file in the following way:

<script></script>

3. Conclusion

In this article, we discussed how to set CSS and JavaScript variables in ThinkPHP. You can avoid hard-coding CSS and JavaScript in your view files by defining variables in the controller and then using them in the template files. At the same time, you can keep your code clean by using the { volist } statement to output CSS and JavaScript files.

As time goes by, we believe that more and more PHP developers will use these tips to improve their front-end development capabilities. If you face any issues using these tips, feel free to leave a message in the comments section. We will try our best to answer your questions.

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