FirePHP的使用实例
一.firePHP是什么
firePHP是一款ff的插件,用于将php调试信息输出到firebug控制台。
二.firePHP有什么用
在正式发布后,又不影响页面显示的情况下,调试php,将调试信息输出到控制台
三.firePHP安装
1。前提:需要安装ff的插件---firebug
2。安装:
a.在服务器端安装FirePHPCore 组件
b.将包放到项目目录下(假设firePHPCore放到项目根目录下)
c.服务端使用方式(导入包)
d、开启客户端
开启Firebug 控制台、脚本、网络。
将当前网站添加入FirePHP允许站点
3.使用
require('FirePHPCore/fb.php'); //导入包 /* NOTE: You must have Output Buffering enabled via ob_start() or output_buffering ini directive. */ /* 打开输出缓冲(因为Firephp主要用到的是header函数),有如下三种方法: * 在程序的前面加上ob_start() * 修改php.ini 将output_buffering设为1或者on * 修改apache的设置,在配置文件中加上php_flag output_buffering on */ ob_start(); /* 开始调试:可以调试输出以下数据类型: * 字符串,可以分为LOG,INFO,WARN,ERROR四种 都会在console中显示出一行结果,只不过显示的图标不同页已. * Object或者Array * 通过sql查询返回的数据 * 抛出的异常信息 * 服务器返回的信息(不输出在console中,而是NET中 */ fb('Hello World'); /* Defaults to FirePHP::LOG */ fb('Log message' ,FirePHP::LOG); //==fb('Log message','LOG');==fb('Log message'); fb('Info message' ,FirePHP::INFO); //==fb('Info message' ,'INFO'); fb('Warn message' ,FirePHP::WARN); //==fb('Warn message' ,'WARN'); fb('Error message',FirePHP::ERROR); //==fb('Error message','ERROR'); /* fb函数:参数一为需要显示的任意值(string|array|integer…) 参数二如果不是类型时,则为这行的标签。例fb(’string’,'label’,FirePHP::LOG) 则在console中显示为 label:string */ fb('Message with label','Label',FirePHP::LOG); fb(array('key1'=>'val1', 'key2'=>array(array('v1','v2'),'v3')), 'TestArray',FirePHP::LOG); function test($Arg1) { throw new Exception('Test Exception'); } try { test(array('Hello'=>'World')); } catch(Exception $e) { /* Log exception including stack trace & variables */ fb($e); } /* FirePHP::TABLE 会在console中显示出一个表格. 参数一的数组下标0的值为要显示的标题 参数一的数组下标1的值为要显示的行的信息 */ fb(array('2 SQL queries took 0.06 seconds',array( array('SQL Statement','Time','Result'), array('SELECT * FROM Foo','0.02',array('row1','row2')), array('SELECT * FROM Bar','0.04',array('row1','row2')) )),FirePHP::TABLE); /* FirePHP::DUMP 会在NET标签下的此页面请求的Server标签下显示你要输出的信息。 */ /* Will show only in "Server" tab for the request */ fb(apache_request_headers(),'RequestHeaders',FirePHP::DUMP); print 'Hello World';
还有点需要注意,为了数据的安全,在修改完bug正式发布的时候,需要FB::setEnabled(false); 调试信息将不再输出到控制台

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