I keep getting a redeclared function error when I try to run my HTML doc (valid_email)

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php – I keep getting a redeclared function error when I try to run my HTML doc (valid_email)

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php – I keep getting a redeclared function error when I try to run my HTML doc (valid_email) – WordPress Development Stack Exchange

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<?php
require_once('C:xamppphppearPEAR.php');



function send_email($to, $from, $subject, $body, $is_body_html = false) {
    require_once("Mail.php");

    function valid_email($email) 
    {
        if(!valid_email($to))
        {
        throw new Exception('This To address is invalid: ' . htmlspecialchars($to));

        }
        if(!valid_email($from))
        {
        throw new Exception('This From address is invalid: ' . htmlspecialchars($from));
        }
        $emailObjects = Mail_RFC822::parseAddressList($email);
        if(PEAR::isError($emailObjects)) {return false;}

        $emailObject = $emailObject[0];
        $email = $emailObject->mailbox . '@' . $emailObject->host;

        if (filter_var($email, FILTER_VALIDATE_EMAIL) === false)
        {
            return false;

        } else{
            return true;
        }
    }

    $smtp = array();

    $smtp['host'] = 'ssl://smtp.gmail.com' ;
    $smtp['port'] = 465;
    $smtp['auth'] = true;
    $smtp['username'] = 'dtestnasr123@gmail.com';
    $smtp['password'] = 'PasswordTest123!';

    $mailer = Mail::factory('smtp', $smtp);

    if(PEAR::isError($mailer))

    {
        throw new Exception('Could not create mailer');
    }

    $recipients = array();
    $recipients[] = $to;

    $headers = array();
    // $headers['From'] = $from;
    $headers['From'] = "coolemailthatisunique@gmail.com";
    $headers['To'] = $to;
    $headers['Subject'] = $subject;
    // var_dump($headers);

    if($is_body_html){
        $headers['Content-type'] = 'text/html';
    }

    $result = $mailer->send($recipients, $headers, $body);

//    if(PEAR::isError($result))
//    {
//         throw new Exception('Error sending email: ' . htmlspecialchars($result->getMessage)() );
//    }

        
    
}
?>