January 2021
Intermediate to advanced
505 pages
9h 45m
Chinese
Content preview from PHP编程：第4版
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372
｜
第
18
章
不同平台的
PHP
$mail->send();
echo 'Message has been sent';
} catch (Exception $e) {
echo "Message could not be sent. Mailer Error: {$mail->ErrorInfo}";
}
行尾处理
Windows
中的文本文件行是以“
\r\n
”结束的，然而
UNIX
中的文本文件是以“
\n
”结束的。
PHP
以二进制模式处理文件，所以不会自动从
Windows
行尾转换到
UNIX
的等价形式。
Windows
中的
PHP
文件处理标准输出、标准输入和标准错误时是将其设置为二进制模
式，
并不做任何翻译。很重要的是，二进制输入经常是和网页服务器的
POST
消息相关的。
你的程序输出到标准输出，如果你想要
Windows
行结束符，必须在特定的地方把它们放
到输出流中。一种方式是定义行结束符常量并且在输出函数中使用它 ：
if (PHP_OS == "WIN32" || PHP_OS == "WINNT") {
define('EOL', "\r\n");
}
else if (PHP_OS == "Linux") {
define('EOL', "\n");
}
else {
define('EOL', "\n");
}
function ln($out){
echo $out . EOL;
}
ln("
这行将有基于服务器平台的行尾字符
");
更简单的方法是通过一个叫作
PHP_EOL
的常量， ...
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