[英]How to turn on output buffering in Symfony2?
how do I turn on output_buffering for every request to my Sf2 app? 如何为对Sf2应用程序的每个请求打开output_buffering?
I need this to use the the FirePHPBundle , but I would prefer to have it application-wide. 我需要使用FirePHPBundle ,但是我希望在整个应用程序中使用它。
A good place to do this is in AppKernel's init
method where the framework also registers various error handlers and debug flags: 一个合适的地方是在AppKernel的init
方法中,该框架还注册各种错误处理程序和调试标志:
class AppKernel extends Kernel
{
...
public function init()
{
parent::init(); //do not forget to call this
if ($this->debug) {
ob_start();
}
}
}
This of course will call ob_start only in a development environment 当然,这只会在开发环境中调用ob_start
You need not to worry about calling ob_start
here because as the php manual states: 您不必担心在这里调用ob_start
,因为php手册指出:
Output buffers are stackable, that is, you may call ob_start() while another ob_start() is active. 输出缓冲区是可堆叠的,也就是说,可以在另一个ob_start()活动时调用ob_start()。 Just make sure that you call ob_end_flush() the appropriate number of times. 只要确保您调用ob_end_flush()适当的次数即可。 If multiple output callback functions are active, output is being filtered sequentially through each of them in nesting order. 如果有多个输出回调函数处于活动状态,则会按嵌套顺序依次过滤每个输出函数的输出。
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