输出缓冲区函数有:
ob_start() - 打开输出控制缓冲
() - 返回输出缓冲区的长度
() - 返回输出缓冲区的嵌套级别
() - 返回输出缓冲区的状态(数组形式返回,默认返回最顶层,参数为true时返回所有)
() - 返回输出缓冲区的内容
() - 以字符串格式返回当前输出缓冲区并关闭输出缓冲
ob_end_clean() - 清空(擦除)缓冲区并关闭输出缓冲
ob_get_flush() - 以字符串返回输出缓冲区内容并关闭缓冲
() - 冲刷出(送出)输出缓冲区内容缓冲
实例如下:
<?php
define('APP_ROOT', dirname(FILE));
$file = '/templates/html/error_config.html';
ob_start();
include(APP_ROOT.$file);
ob_end_flush();
//$contents = ob_get_contents(); 这样可以将输出保存,可以作进一步处理
//ob_end_clean();
//echo $contents;
?><?php echo"<?xml version="1.0" encoding="utf-8">"; ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta http-equiv="Content-Script-Type" content="text/javascript" />
<meta http-equiv="Content-Style-Type" content="text/css" />
<title>Error</title>
</head>
<body onload="doRedirect()">
<h1>Error</h1>
<p style="position:absolute;top:150px;text-align:center;width:95%;">
<p style="margin:12pt;"><strong>config.php</strong> does not exist or is not readable by the webserver in the directory.</p>
<p style="margin:12pt;"><?php echo CommonFunctions::$PSI_VERSION_STRING ?></p>
</p>
</body>
</html>输出结果如下:
config.php does not exist or is not readable by the webserver in the phpsysinfo directory.
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