(PHP 4 >= 4.2.0, PHP 5)
ob_get_status — Get status of output buffers
$full_status  = FALSE
  ] )
   ob_get_status() returns status information on either
   the top level output buffer or all active output buffer levels if
   full_status is set to TRUE.
  
full_status
       TRUE to return all active output buffer levels. If FALSE or not
       set, only the top level output buffer is returned.
      
   If called without the full_status parameter
   or with full_status = FALSE a simple array
   with the following elements is returned:
   
Array
(
    [level] => 2
    [type] => 0
    [status] => 0
    [name] => URL-Rewriter
    [del] => 1
)
| Key | Value | 
|---|---|
| level | Output nesting level | 
| type | PHP_OUTPUT_HANDLER_INTERNAL (0) or PHP_OUTPUT_HANDLER_USER (1) | 
| status | One of PHP_OUTPUT_HANDLER_START (0), PHP_OUTPUT_HANDLER_CONT (1) or PHP_OUTPUT_HANDLER_END (2) | 
| name | Name of active output handler or ' default output handler' if none is set | 
| del | Erase-flag as set by ob_start() | 
   If called with full_status = TRUE an array
   with one element for each active output buffer level is returned.
   The output level is used as key of the top level array and each array
   element itself is another array holding status information
   on one active output level.
   
Array
(
    [0] => Array
        (
            [chunk_size] => 0
            [size] => 40960
            [block_size] => 10240
            [type] => 1
            [status] => 0
            [name] => default output handler
            [del] => 1
        )
    [1] => Array
        (
            [chunk_size] => 0
            [size] => 40960
            [block_size] => 10240
            [type] => 0
            [buffer_size] => 0
            [status] => 0
            [name] => URL-Rewriter
            [del] => 1
        )
)
The full output contains these additional elements:
| Key | Value | 
|---|---|
| chunk_size | Chunk size as set by ob_start() | 
| size | ... | 
| blocksize | ... |