WordPress If is in category - PHP

WordPress If statement is a commonly used condition in WordPress development. By using WordPress If statement, you can execute a piece of code if a certain condition is met. One of the conditions you might want to use the If statement is checking whether a post belongs to a certain category. In this tutorial, we will show you how to use the If is in category condition in WordPress using PHP.

Checking If a Post Belongs to a Certain Category

In WordPress, you can use the in_category() function to check if a post belongs to a certain category. The in_category() function will return a boolean value that indicates whether a post belongs to a certain category. Here's the basic syntax of the function:

in_category( $category, $post );

The $category parameter is the category ID, name, or slug that you want to check. The $post parameter is optional, and it indicates the post that you want to check. If you omit the $post parameter, WordPress will use the current post.

Let's see an example of how to use the in_category() function to check if a post belongs to a certain category. In this example, we will check if the current post belongs to the category with the ID 5:

if( in_category( '5' ) ){
    // Execute your code here
}

In the above example, we use the If statement to check if the current post belongs to the category with the ID 5. If the post belongs to the category with the ID 5, WordPress will execute the code inside the If statement.

Checking If a Post Belongs to Multiple Categories

You can also use the in_category() function to check if a post belongs to multiple categories. To do this, you need to pass an array of category IDs, names, or slugs to the in_category() function. Here's an example:

if( in_category( array( '5', '6', '7' ) ) ){
    // Execute your code here
}

In the above example, we use the If statement to check if the current post belongs to the categories with the IDs 5, 6, or 7. If the post belongs to any of these categories, WordPress will execute the code inside the If statement.

Conclusion

In conclusion, the If is in category condition is a useful condition that you can use in WordPress development to execute a piece of code if a post belongs to a certain category. By using the in_category() function, you can easily check whether a post belongs to a certain category or multiple categories.