How can PHP developers optimize their code to only include relevant form data in email notifications?

To optimize their code to only include relevant form data in email notifications, PHP developers can create an array of the specific form fields they want to include in the email. They can then loop through this array and only add the form data for those fields to the email message. 

// Array of relevant form fields
$relevantFields = array('name', 'email', 'message');

// Initialize email message
$emailMessage = '';

// Loop through form data and add relevant fields to email message
foreach($_POST as $key => $value) {
    if(in_array($key, $relevantFields)) {
        $emailMessage .= ucfirst($key) . ': ' . $value . "\n";
    }
}

// Send email with relevant form data
// (code to send email goes here)

Keywords

PHP form data email notifications optimization filtering

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