在开发中，很多时候后系统会提示用户相关的信息，这时候，需要发送一个response请求，那么php是如何发送的呢？
有页面布局、有css样式，有获取内容，这样就会显示出一个完整页面。
public function sendPhpResponse($exception) {
if (!$exception instanceof FlattenException) {
$exception = FlattenException::create($exception);
}
if (!headers_sent()) {
header(sprintf('HTTP/1.0 %s', $exception->getStatusCode()));
foreach ($exception->getHeaders() as $name => $value) {
header($name . ': ' . $value, FALSE);
}
header('Content-Type: text/html; charset=' . $this->charset);
}
echo $this->decorate($this->getContent($exception), $this->getStylesheet($exception));
} private function decorate($content, $css) {
return <<<EOF
<!DOCTYPE html>
<html>
<head>
<meta charset="{$this->charset}" />
<meta name="robots" content="noindex,nofollow" />
<style>
/* Copyright (c) 2010, Yahoo! Inc. All rights reserved. Code licensed under the BSD License: http://developer.yahoo.com/yui/license.html */
html{color:#000;background:#FFF;}body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,code,form,fieldset,legend,input,textarea,p,blockquote,th,td{margin:0;padding:0;}table{border-collapse:collapse;border-spacing:0;}fieldset,img{border:0;}address,caption,cite,code,dfn,em,strong,th,var{font-style:normal;font-weight:normal;}li{list-style:none;}caption,th{text-align:left;}h1,h2,h3,h4,h5,h6{font-size:100%;font-weight:normal;}q:before,q:after{content:'';}abbr,acronym{border:0;font-variant:normal;}sup{vertical-align:text-top;}sub{vertical-align:text-bottom;}input,textarea,select{font-family:inherit;font-size:inherit;font-weight:inherit;}input,textarea,select{*font-size:100%;}legend{color:#000;}
html { background: #eee; padding: 10px }
img { border: 0; }
#sf-resetcontent { width:970px; margin:0 auto; }
$css
</style>
</head>
<body>
$content
</body>
</html>
EOF;
}getContent方法
public function getContent(FlattenException $exception) {
switch ($exception->getStatusCode()) {
case 404:
$title = 'Sorry, the page you are looking for could not be found.';
break;
default:
$title = 'Whoops, looks like something went wrong.';
}
$content = '';
if ($this->debug) {
try {
$count = count($exception->getAllPrevious());
$total = $count + 1;
foreach ($exception->toArray() as $position => $e) {
$ind = $count - $position + 1;
$class = $this->formatClass($e['class']);
$message = nl2br($this->escapeHtml($e['message']));
$content .= sprintf(<<<'EOF'
<h2 class="block_exception clear_fix">
<span class="exception_counter">%d/%d</span>
<span class="exception_title">%s%s:</span>
<span class="exception_message">%s</span>
</h2>
<div class="block">
<ol class="traces list_exception">
EOF
, $ind, $total, $class, $this->formatPath($e['trace'][0]['file'], $e['trace'][0]['line']), $message);
foreach ($e['trace'] as $trace) {
$content .= ' <li>';
if ($trace['function']) {
$content .= sprintf('at %s%s%s(%s)', $this->formatClass($trace['class']), $trace['type'], $trace['function'], $this->formatArgs($trace['args']));
}
if (isset($trace['file']) && isset($trace['line'])) {
$content .= $this->formatPath($trace['file'], $trace['line']);
}
$content .= "</li>\n";
}
$content .= " </ol>\n</div>\n";
}
} catch (\Exception $e) {
// something nasty happened and we cannot throw an exception anymore
if ($this->debug) {
$title = sprintf('Exception thrown when handling an exception (%s: %s)', get_class($e), $this->escapeHtml($e->getMessage()));
} else {
$title = 'Whoops, looks like something went wrong.';
}
}
}
return <<<EOF
<div id="sf-resetcontent" class="sf-reset">
<h1>$title</h1>
$content
</div>
EOF;
}css方法
public function getStylesheet(FlattenException $exception) {
return <<<'EOF'
.sf-reset { font: 11px Verdana, Arial, sans-serif; color: #333 }
.sf-reset .clear { clear:both; height:0; font-size:0; line-height:0; }
.sf-reset .clear_fix:after { display:block; height:0; clear:both; visibility:hidden; }
.sf-reset .clear_fix { display:inline-block; }
.sf-reset * html .clear_fix { height:1%; }
.sf-reset .clear_fix { display:block; }
.sf-reset, .sf-reset .block { margin: auto }
.sf-reset abbr { border-bottom: 1px dotted #000; cursor: help; }
.sf-reset p { font-size:14px; line-height:20px; color:#868686; padding-bottom:20px }
.sf-reset strong { font-weight:bold; }
.sf-reset a { color:#6c6159; cursor: default; }
.sf-reset a img { border:none; }
.sf-reset a:hover { text-decoration:underline; }
.sf-reset em { font-style:italic; }
.sf-reset h1, .sf-reset h2 { font: 20px Georgia, "Times New Roman", Times, serif }
.sf-reset .exception_counter { background-color: #fff; color: #333; padding: 6px; float: left; margin-right: 10px; float: left; display: block; }
.sf-reset .exception_title { margin-left: 3em; margin-bottom: 0.7em; display: block; }
.sf-reset .exception_message { margin-left: 3em; display: block; }
.sf-reset .traces li { font-size:12px; padding: 2px 4px; list-style-type:decimal; margin-left:20px; }
.sf-reset .block { background-color:#FFFFFF; padding:10px 28px; margin-bottom:20px;
-webkit-border-bottom-right-radius: 16px;
-webkit-border-bottom-left-radius: 16px;
-moz-border-radius-bottomright: 16px;
-moz-border-radius-bottomleft: 16px;
border-bottom-right-radius: 16px;
border-bottom-left-radius: 16px;
border-bottom:1px solid #ccc;
border-right:1px solid #ccc;
border-left:1px solid #ccc;
}
.sf-reset .block_exception { background-color:#ddd; color: #333; padding:20px;
-webkit-border-top-left-radius: 16px;
-webkit-border-top-right-radius: 16px;
-moz-border-radius-topleft: 16px;
-moz-border-radius-topright: 16px;
border-top-left-radius: 16px;
border-top-right-radius: 16px;
border-top:1px solid #ccc;
border-right:1px solid #ccc;
border-left:1px solid #ccc;
overflow: hidden;
word-wrap: break-word;
}
.sf-reset a { background:none; color:#868686; text-decoration:none; }
.sf-reset a:hover { background:none; color:#313131; text-decoration:underline; }
.sf-reset ol { padding: 10px 0; }
.sf-reset h1 { background-color:#FFFFFF; padding: 15px 28px; margin-bottom: 20px;
-webkit-border-radius: 10px;
-moz-border-radius: 10px;
border-radius: 10px;
border: 1px solid #ccc;
}
EOF;
}其他函数
private function formatClass($class) {
$parts = explode('\\', $class);
return sprintf('<abbr title="%s">%s</abbr>', $class, array_pop($parts));
}
private function formatPath($path, $line) {
$path = $this->escapeHtml($path);
$file = preg_match('#[^/\\\\]*$#', $path, $file) ? $file[0] : $path;
if ($linkFormat = $this->fileLinkFormat) {
$link = strtr($this->escapeHtml($linkFormat), array('%f' => $path, '%l' => (int)$line));
return sprintf(' in <a href="%s" title="Go to source">%s line %d</a>', $link, $file, $line);
}
return sprintf(' in <a title="%s line %3$d" ondblclick="var f=this.innerHTML;this.innerHTML=this.title;this.title=f;">%s line %d</a>', $path, $file, $line);
}
/**
* Formats an array as a string.
*
* @param array $args The argument array
*
* @return string
*/
private function formatArgs(array $args) {
$result = array();
foreach ($args as $key => $item) {
if ('object' === $item[0]) {
$formattedValue = sprintf('<em>object</em>(%s)', $this->formatClass($item[1]));
} elseif ('array' === $item[0]) {
$formattedValue = sprintf('<em>array</em>(%s)', is_array($item[1]) ? $this->formatArgs($item[1]) : $item[1]);
} elseif ('string' === $item[0]) {
$formattedValue = sprintf("'%s'", $this->escapeHtml($item[1]));
} elseif ('null' === $item[0]) {
$formattedValue = '<em>null</em>';
} elseif ('boolean' === $item[0]) {
$formattedValue = '<em>' . strtolower(var_export($item[1], TRUE)) . '</em>';
} elseif ('resource' === $item[0]) {
$formattedValue = '<em>resource</em>';
} else {
$formattedValue = str_replace("\n", '', var_export($this->escapeHtml((string)$item[1]), TRUE));
}
$result[] = is_int($key) ? $formattedValue : sprintf("'%s' => %s", $key, $formattedValue);
}
return implode(', ', $result);
}
/**
* HTML-encodes a string.
*/
private function escapeHtml($str) {
return htmlspecialchars($str, ENT_QUOTES | ENT_SUBSTITUTE, $this->charset);
}