我對 PHP 的理解是，您可以使用“\n”或“\r\n”或echo "<br>";創建一個新行。但是我對它們的應用根本不會創建新行。我在這里做錯了什么？這是代碼：<?phpsession_start(); // before any HTML is echoed if($_POST) { //$email = ""; $email = $_POST['email']; $password = $_POST['password']; if(isset($_POST['email'])) { $email = str_replace(array("\r", "\n", "%0a", "%0d"), '', $_POST['email']); $email = filter_var($email, FILTER_VALIDATE_EMAIL); } if(isset($_POST['password'])) { $password = htmlspecialchars($_POST['password']); } $recipient = "[email protected]"; $headers = 'MIME-Version: 1.0' . "\r\n" .'Content-type: text/html; charset=utf-8' . "\r\n" .'From: ' . $email . "\r\n"; $email_content .= "Email: $email" . "\r\n"; echo "<br />\n"; $email_content .= "Password: $password"; echo $email_content; if(mail($recipient, $email_content, $headers)) { header("Location: default-image.png"); echo " <script language=javascript> //alert('Done, Click Ok'); window.location='default-image.png'; </script>"; } else { echo '<p>ERROR! Please go back and try again.</p>'; } } else { echo '<p>Something went wrong</p>';} ?>感謝您的時間和投入。
3 回答
月關寶盒
TA貢獻1772條經驗 獲得超5個贊
您將值分配給變量。不在echo該上下文中，會將您的值輸出到您的頁面輸出。
$email_content .= "Email: $email" . "\r\n";
$email_content .= "<br />\n";
$email_content .= "Password: $password";
echo $email_content;
這才是正確的做法。
接下來是<br />HTML 中新行的表示。\n并且\r\n是新行的 ASCII 表示。例如，這主要用于文本文件和其他編輯器或 CSV 文件。所以你混淆了不同的東西。
揚帆大魚
TA貢獻1799條經驗 獲得超9個贊
使用 \n 清理代碼。用于<br />添加分隔線。確保連接<br />到您的變量。
\n 將清理源代碼視圖并<br />需要連接到您的變量。
$email_content .= "Email: $email" . "<br />\n";
$email_content .= "Password: $password";
請注意，如果您不包含 \n，則在瀏覽器中查看源代碼時，您可能會看到 html 可能位于同一行。
<?php
$email = "foo";
$password = "bar";
$email_content1 = "";
$email_content2 = "";
//without the \n to cleanup the source code
$email_content1 .= "Email: $email" . "<br />";
$email_content1 .= "Password: $password";
echo $email_content1;
//ignore, used for break
echo "\n\n<br />\n\n";
//with the \n to cleanup the source code
$email_content2 .= "Email: $email" . "<br />\n";
$email_content2 .= "Password: $password";
echo $email_content2;
?>
源代碼如下所示：
Email: foo<br />Password: bar
<br />
Email: foo<br />
Password: bar
慕運維8079593
TA貢獻1876條經驗 獲得超5個贊
您應該使用 '\n' 作為將在輸出中顯示的換行符
$email_content .= "Email: $email" . "\n\n\n";
$email_content .= "\n\n";
$email_content .= "Password: $password";
echo $email_content;
你會看到密碼以新行開頭
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