php E-mail

PHP allows you to send emails directly from scripts.

PHP mail() function

PHP mail() function is used to send an email from a script.

Syntax

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

##ParametersDescriptiontoRequired. Specify email recipients. subjectRequired. Specifies the subject of the email. messageRequired. Define the message to be sent. LF (\n) should be used to separate lines. Each line should be limited to 70 characters. headersOptional. Specifies additional headers such as From, Cc, and Bcc. Additional headers should be separated using CRLF (\r\n). parametersOptional. Specifies additional parameters for the mailer.

Note: PHP running mail functions requires an installed and running mail system (such as: sendmail, postfix, qmail, etc.). The program used is defined through configuration settings in the php.ini file. Read more in our PHP Mail Reference Manual.

PHP Simple E-Mail

The simplest way to send email via PHP is to send a text email.

In the following example, we first declare the variables ($to, $subject, $message, $from, $headers), and then we use these variables in the mail() function to send an E -mail:

<?php
$to = "someone@example.com";         // 邮件接收者
$subject = "参数邮件";                // 邮件标题
$message = "Hello! 这是邮件的内容。";  // 邮件正文
$from = "someonelse@example.com";   // 邮件发送者
$headers = "From:" . $from;         // 头部信息设置
mail($to,$subject,$message,$headers);
echo "邮件已发送";
?>

PHP Mail Form

With PHP, you can create a feedback form on your site. The following example sends a text message to the specified e-mail address:

<html>
<head>
<meta charset="utf-8">
<title>php中文网(php.cn)</title>
</head>
<body>
<?php
if (isset($_REQUEST['email'])) { // 如果接收到邮箱参数则发送邮件
// 发送邮件
$email = $_REQUEST['email'] ;
$subject = $_REQUEST['subject'] ;
$message = $_REQUEST['message'] ;
mail("someone@example.com", $subject,
$message, "From:" . $email);
echo "邮件发送成功";
} else { // 如果没有邮箱参数则显示表单
echo "<form method='post' action='mailform.php'>
Email: <input name='email' type='text'><br>
Subject: <input name='subject' type='text'><br>
Message:<br>
<textarea name='message' rows='15' cols='40'>
</textarea><br>
<input type='submit'>
</form>";
}
?>
</body>
</html>

Explanation of the example:

First, check whether it is filled in Email input box
If it is not filled in (for example, when the page is visited for the first time), output HTML form
If it is filled in (when the form is visited for the first time) After filling in), send an email from the form
After filling out the form and clicking the submit button, the page is reloaded and you can see that the email input is reset and the email is sent successfully. Message

Comments: This simple way of sending e-mail is not secure. You will read more about email scripts in the next chapter of this tutorial. security risks, we will explain to you how to validate user input to make it more secure.