PHP Console工具和FirePHP功能相似，提供以下功能：

Handle PHP errors, dump variables, execute PHP code remotely in Google Chrome

</blockquote> </div>

Demo

首先在Chrome中安装PHP Console插件:

https://chrome.google.com/webstore/detail/php-console/nfhmhhlpfleoednkpnnnkolmclajemef

其次在PHP代码中引入PHP Console库，然后调用输出相应调试信息：

如下例index2.php：

<?php     require_once(__DIR__ . '/../src/PhpConsole/__autoload.php');     // Call debug from PhpConsole\Handler  $handler = PhpConsole\Handler::getInstance();  $handler->start();  $handler->debug('called from handler debug', 'some.three.tags');     $array = array(      'test' => 1,      'test2' => 1,      'key' => array(          1, 2, 3, 4,      ),    );  $handler->debug($array, 'test.wiki.wade.zhan');

输出调试信息到控制台，如下图：

原理介绍

PHP Console工具通过将调试信息输出到http响应头PHP-Console，然后PHP Console插件分析响应头PHP-Console字符串输出相应调试信息。

附录

PHP Console提供了通过密码来保护调试信息的功能，如下例，在服务器端设置密码：

<?php     require_once(__DIR__ . '/../src/PhpConsole/__autoload.php');     $password = 'test';  $connector = PhpConsole\Connector::getInstance();  $connector->setPassword($password);     // Call debug from PhpConsole\Handler  $handler = PhpConsole\Handler::getInstance();  $handler->start();  $handler->debug('called from handler debug', 'some.three.tags');     $array = array(      'test' => 1,      'test2' => 1,      'key' => array(          1, 2, 3, 4,      ),    );  $handler->debug($array, 'test.wiki.wade.zhan');

此时可以看到只有当客户端输入正确的密码：

此时响应头部才会输出相应的调试信息：

HTTP/1.1 200 OK  Server: Tengine/2.0.3  Date: Tue, 28 Oct 2014 12:36:04 GMT  Content-Type: text/html  Connection: keep-alive  X-Powered-By: PHP/5.3.29  PHP-Console-Postpone: {"protocol":5,"isPostponed":true,"id":"6957661441226218549514727634"}  PHP-Console: {"protocol":5,"auth":{"publicKey":"bf802ef9f6d61a5d4a720892a79bf8285d92c31c2a99be2931b504dc54eeb209","isSuccess":true},"docRoot":"\/usr\/local\/wwwroot\/dokuwiki","sourcesBasePath":null,"getBackData":null,"isLocal":false,"isSslOnlyMode":false,"isEvalEnabled":false,"messages":[{"type":"debug","tags":["some","three","tags"],"data":"called from handler debug","file":null,"line":null,"trace":null},{"type":"debug","tags":["test","wiki","wade","zhan"],"data":{"test":1,"test2":1,"key":[1,2,3,4]},"file":null,"line":null,"trace":null}]}  Content-Length: 0

来自：http://blog.csdn.net/billfeller/article/details/40554625