我正在运行《Head First PHP和MySQL》第1章的示例。我将文件放在了Head Fist网站上apache的/var/www文件夹中，程序也可以运行。但是，为什么php的mailto没有起作用呢？
编辑：顺便提一下，我正在使用Ubuntu 10.04。
我在脚本中添加了两行调试代码：
编辑：顺便提一下，我正在使用Ubuntu 10.04。
我在脚本中添加了两行调试代码：
$testmail = mail($to, $subject, $msg);
echo 'WAS IT MAILED? <br />'.$testmail;
为什么无法打印“WAS IT MAILED? TRUE”？为什么无法发送邮件？
编辑：我将邮件发送至我的Gmail地址是否相关？
以下是脚本：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Aliens Abducted Me - Report an Abduction</title>
</head>
<body>
<h2>Aliens Abducted Me - Report an Abduction</h2>
<?php
$name = $_POST['firstname'] . ' ' . $_POST['lastname'];
$when_it_happened = $_POST['whenithappened'];
$how_long = $_POST['howlong'];
$how_many = $_POST['howmany'];
$alien_description = $_POST['aliendescription'];
$what_they_did = $_POST['whattheydid'];
$fang_spotted = $_POST['fangspotted'];
$email = $_POST['email'];
$other = $_POST['other'];
$to = 'antoniorueda18@gmail.com';
$subject = 'Aliens Abducted Me - Abduction Report';
$msg = "$name was abducted $when_it_happened and was gone for $how_long.\n" .
"Number of aliens: $how_many\n" .
"Alien description: $alien_description\n" .
"What they did: $what_they_did\n" .
"Fang spotted: $fang_spotted\n" .
"Other comments: $other";
$testmail = mail($to, $subject, $msg);
echo 'WAS IT MAILED? <br />'.$testmail;
echo 'Thanks for submitting the form.<br />';
echo 'You were abducted ' . $when_it_happened;
echo ' and were gone for ' . $how_long . '<br />';
echo 'Number of aliens: ' . $how_many . '<br />';
echo 'Describe them: ' . $alien_description . '<br />';
echo 'The aliens did this: ' . $what_they_did . '<br />';
echo 'Was Fang there? ' . $fang_spotted . '<br />';
echo 'Other comments: ' . $other . '<br />';
echo 'Your email address is ' . $email;
?>
</body>
</html>
以下是HTML表单：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Aliens Abducted Me - Report an Abduction</title>
<link rel="stylesheet" type="text/css" href="style.css" />
</head>
<body>
<h2>Aliens Abducted Me - Report an Abduction</h2>
<p>Share your story of alien abduction:</p>
<form method="post" action="report.php">
<label for="firstname">First name:</label>
<input type="text" id="firstname" name="firstname" /><br />
<label for="lastname">Last name:</label>
<input type="text" id="lastname" name="lastname" /><br />
<label for="email">What is your email address?</label>
<input type="text" id="email" name="email" /><br />
<label for="whenithappened">When did it happen?</label>
<input type="text" id="whenithappened" name="whenithappened" /><br />
<label for="howlong">How long were you gone?</label>
<input type="text" id="howlong" name="howlong" /><br />
<label for="howmany">How many did you see?</label>
<input type="text" id="howmany" name="howmany" /><br />
<label for="aliendescription">Describe them:</label>
<input type="text" id="aliendescription" name="aliendescription" size="32" /><br />
<label for="whattheydid">What did they do to you?</label>
<input type="text" id="whattheydid" name="whattheydid" size="32" /><br />
<label for="fangspotted">Have you seen my dog Fang?</label>
Yes <input id="fangspotted" name="fangspotted" type="radio" value="yes" />
No <input id="fangspotted" name="fangspotted" type="radio" value="no" /><br />
<img src="fang.jpg" width="100" height="175"
alt="My abducted dog Fang." /><br />
<label for="other">Anything else you want to add?</label>
<textarea id="other" name="other"></textarea><br />
<input type="submit" value="Report Abduction" name="submit" />
</form>
</body>
</html>
mail()函数返回TRUE或FALSE。在 PHP 中，当您将布尔值作为字符串打印时，TRUE 会显示为 '1'，而 FALSE 则会显示为空字符串 ''。 - Álvaro González