Contact Form 7如何获取同名数组输入appliSkill[]的所有值并发送邮件？

Hey there! I've dealt with this exact issue when building dynamic forms with Contact Form 7, so let me walk you through the solution step by step:

Step 1: Add Custom PHP Code to Process the Array Data #

Contact Form 7 doesn't natively handle array-named fields like appliSkill[] in its default mail tags, so we'll use a CF7 hook to process the data before the email is sent.

Add this code to your theme's functions.php file (or a custom plugin if you prefer):

add_action('wpcf7_before_send_mail', 'process_appli_skill_array');

function process_appli_skill_array($contact_form) {
    // Get the submitted form data
    $submission = WPCF7_Submission::get_instance();
    if (!$submission) return;
    
    $posted_data = $submission->get_posted_data();
    
    // Check if the appliSkill array exists
    if (isset($posted_data['appliSkill']) && is_array($posted_data['appliSkill'])) {
        // Filter out empty values (optional but recommended)
        $clean_skills = array_filter($posted_data['appliSkill'], function($skill) {
            return !empty(trim($skill));
        });
        
        // Convert the array to a formatted string (e.g., bullet points)
        $skill_list = implode("\n- ", $clean_skills);
        // Add a leading bullet if there are skills
        if (!empty($skill_list)) {
            $skill_list = "- " . $skill_list;
        }
        
        // Add the processed list as a custom mail tag
        $submission->add_posted_data('appli_skill_list', $skill_list);
    }
}

Step 2: Use the Custom Mail Tag in Your CF7 Email #

Head over to your Contact Form 7 editor, go to the Mail tab, and insert the custom tag [appli_skill_list] wherever you want to display the full list of skills.

For example, in your email body:

Applicant's Skills:
[appli_skill_list]

Quick Customization Tips #

• If you prefer comma-separated values instead of bullet points, replace implode("\n- ", $clean_skills) with implode(', ', $clean_skills).
• Remove the array_filter block if you want to include empty fields in the email (though this isn't usually recommended for user experience).
• Always test the form after setting this up—submit a form with multiple filled skills to confirm the email displays everything correctly.

内容的提问来源于stack exchange，提问作者Nash