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Are you looking to display a custom field within your WordPress posts, but only if the field actually exists? Custom fields can be a great way to add additional information or functionality to your posts, but it can be frustrating when the field is empty and still displayed on the frontend of your website. In this article, we’ll show you how to check if a custom field exists before displaying its content, helping you to only show the field when it has a value.
function wpturbo_display_custom_field() {
if ( get_field( 'custom_field_name' ) ) {
echo get_field( 'custom_field_name' );
}
}
add_action( 'the_content', 'wpturbo_display_custom_field' );
The code snippet provided demonstrates how to display a custom field value only if the custom field exists. This is particularly useful when you want to display specific information or content from a custom field, but you only want to show it if the custom field has a value.
The code begins by defining a function called wpturbo_display_custom_field(). This function is responsible for retrieving the value of the custom field and displaying it.
Inside the function, we use an if statement to check if the custom field with the name "custom_field_name" exists and has a value. The get_field() function is used to retrieve the value of the custom field, passing in the name of the field as its parameter. If the custom field exists and has a value, the code inside the if statement will be executed.
Within the if statement, we use the echo statement to output the value of the custom field. This will display the content of the custom field on the page where the custom field is used.
Finally, we hook the wpturbo_display_custom_field() function into the the_content action. This action is fired whenever the main content of a post or page is displayed. By adding our function to this action, we ensure that the custom field value is only displayed when the main content is being rendered.
In summary, this code snippet allows you to display a custom field value only if the custom field exists, providing a dynamic way to show specific content based on the presence of a custom field value.