如何在Contact Form 7后台表单添加required属性？

Hey there! Let's get your Contact Form 7 textarea to output that native required="required" attribute you're after.

First, a quick note: your existing shortcode [textarea* your-message id:your-message] already marks the field as required in CF7's system (that's what the * does), which adds aria-required="true" and enables CF7's own front-end validation. But if you specifically want the browser's native required attribute too, here's how to do it easily:

Method 1: Add the Attribute Directly in the Shortcode #

Contact Form 7 lets you add custom HTML attributes to fields using the attr: prefix. Just modify your shortcode like this:

[textarea* your-message id:your-message attr:required="required"] <label for="your-message">Message</label>

When CF7 renders this, it will include the required="required" attribute in the final <textarea> tag, matching the example HTML you shared.

Method 2: Use a Filter Hook (For More Control) #

If you need to apply this to multiple fields or want a more automated approach, add this snippet to your theme's functions.php file (or a custom plugin):

add_filter( 'wpcf7_form_tag', 'cf7_add_native_required_attribute', 10, 2 );
function cf7_add_native_required_attribute( $tag, $unused ) {
    // Check if the field is a textarea and marked as required (has the *)
    if ( 'textarea' === $tag['type'] && ! empty( $tag['required'] ) ) {
        $tag['atts']['required'] = 'required';
    }
    return $tag;
}

This will automatically add the native required attribute to all required textarea fields in your CF7 forms, so you don't have to edit each shortcode individually.

Either method will get you the exact HTML output you're looking for. The first method is quickest for a single field, while the second is better for scaling across multiple forms.

内容的提问来源于stack exchange，提问作者Abhishek