The PHP mail() Function

mail(to,subject,message,headers,parameters)

<?php
			$to = "tayna-anita@mail.ru";
			$subject = "Test mail";
			$message = "Hello! This is a simple email message.";
			$from = "someonelse@example.com";
			$headers = "From: " .$from;
			if (mail($to, $subject, $message, $headers))
			{
				echo "Mail sent.";
			}
		?>

<?php
if (isset($_REQUEST['email']))
//if "email" is filled out, send email
  {
  //send email
  $email = $_REQUEST['email'] ;
  $subject = $_REQUEST['subject'] ;
  $message = $_REQUEST['message'] ;
  mail("someone@example.com", "Subject: $subject",
  $message, "From: $email" );
  echo "Thank you for using our mail form";
  }
else
//if "email" is not filled out, display the form
  {
  echo "
  Email: <input name='email' type='text'><br>
  Subject: <input name='subject' type='text'><br>
  Message:<br>
  &lt;textarea name='message' rows='15' cols='40'>
  &lt;/textarea><br>
  <input type='submit'>
  ";
  }
?>

Валидация email адреса
FILTER_SANITIZE_EMAIL filter removes all illegal e-mail characters from a string
FILTER_VALIDATE_EMAIL filter validates value as an e-mail address

<!DOCTYPE HTML> 
<html>
	<head>
	</head>
	<body>
		<?php
			function spamcheck ($field)
			{
				$field = filter_var($field, FILTER_SANITIZE_EMAIL);
				if (filter_var($field, FILTER_VALIDATE_EMAIL))
				{
					return TRUE;
				}
				else 
				{
					return FALSE;
				}
			}
					
			if (isset($_REQUEST['email']))
			{
				$mailcheck = spamcheck($_REQUEST['email']);
				if ($mailcheck == FALSE)
				{
					echo "Invalid input";
				}
				
				$email = $_REQUEST['email'];
				$subject = $_REQUEST['subject'];
				$message = $_REQUEST['message'];
				if (mail("tayna-anita@mail.ru", $subject,
				$message, "From: " . $email))
				{
					echo "Thank you for using our mail form";
				}
			}
			else
			{
				echo "
				Email: <input name='email' type='text'></br />
				Subject: <input name='subject' type='text'></br />
				Message:<br />
				&lt;textarea name='message' rows='15' cols='40'>&lt;/textarea><br />
				<input type='submit'>
				";
			}
		?>
	</body>
</html>

The PHP mail() Function

The PHP mail() Function

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