PHP学习笔记(3) Output control,基本篇完结，剩下的就是各个函数了。[]

1, flush(), example:

for( $i = 0; $i < 3; $i++ ) { print("OK<BR"); flush(); sleep(1); }

2, ob_start, bool ob_start ( [callback output_callback])
callback function will be called when ob_end_flush() is called.

3,bool ob_end_flush ( void )

4, ob_get_flush will return the buffer as string

5, ob_get_length will return the size of the buffer.

6, ob_clearn

7, ob_end_clean

8, ob_flush()