Check out example codes for "php mail". It will help you in understanding the concepts better.

Code Example 1

<?php
$to = $_POST['email'];
$subject = "Email Subject";

$message = 'Dear '.$_POST['name'].',<br>';
$message .= "We welcome you to be part of family<br><br>";
$message .= "Regards,<br>";

// Always set content-type when sending HTML email
$headers = "MIME-Version: 1.0" . "\r\n";
$headers .= "Content-type:text/html;charset=UTF-8" . "\r\n";

// More headers
$headers .= 'From: <[email protected]>' . "\r\n";
$headers .= 'Cc: [email protected]' . "\r\n";

mail($to,$subject,$message,$headers);
?>

Code Example 2

<?php     
  

  var Name = $_POST('name');
  // grabbing the data from the form when posted
  // make sure to add name="name" or name="email"
  // in the input tag to grab the the specific elements
  // data example <textarea name="message"> or 
// <input type="number name="number">
  
  var Email = $_POST('email');
  var Number = $_POST('number');
  
$to_email = 'Your E-mail';
$subject = 'The Subject of the message';
$message = 'Name'.$name. "email" .$email. "number:" .$number.".";
$headers = 'From: noreply @ company . com'; //optional
mail($to_email,$subject,$message,$headers);
?>

Code Example 3

mail ( string $to , string $subject , string $message [, mixed $additional_headers [, string $additional_parameters ]] ) : bool

Code Example 4

<?php
// Multiple recipients
$to = '[email protected], [email protected]'; // note the comma

// Subject
$subject = 'Birthday Reminders for August';

// Message
$message = '
<html>
<head>
  <title>Birthday Reminders for August</title>
</head>
<body>
  <p>Here are the birthdays upcoming in August!</p>
  <table>
    <tr>
      <th>Person</th><th>Day</th><th>Month</th><th>Year</th>
    </tr>
    <tr>
      <td>Johny</td><td>10th</td><td>August</td><td>1970</td>
    </tr>
    <tr>
      <td>Sally</td><td>17th</td><td>August</td><td>1973</td>
    </tr>
  </table>
</body>
</html>
';

// To send HTML mail, the Content-type header must be set
$headers[] = 'MIME-Version: 1.0';
$headers[] = 'Content-type: text/html; charset=iso-8859-1';

// Additional headers
$headers[] = 'To: Mary <[email protected]>, Kelly <[email protected]>';
$headers[] = 'From: Birthday Reminder <[email protected]>';
$headers[] = 'Cc: [email protected]';
$headers[] = 'Bcc: [email protected]';

// Mail it
mail($to, $subject, $message, implode("\r\n", $headers));
?>

Code Example 5

$mailtext = '<html>
<head>
    <title>HTML-E-Mail mit PHP erstellen</title>
</head>

<body>
...
</body>
</html>
';

$empfaenger = "[email protected]";  // Mailadresse
$absender   = "[email protected]";
$betreff    = "Mail-Test - HTML-E-Mail mit PHP erstellen";
$antwortan  = "[email protected]";

$header  = "MIME-Version: 1.0\r\n";
$header .= "Content-type: text/html; charset=utf-8\r\n";

$header .= "From: $absender\r\n";
$header .= "Reply-To: $antwortan\r\n";
// $header .= "Cc: $cc\r\n";  // falls an CC gesendet werden soll
$header .= "X-Mailer: PHP ". phpversion();

mail( $empfaenger,
      $betreff,
      $mailtext,
      $header);

echo "Mail wurde gesendet!";

Learn ReactJs, React Native from akashmittal.com