Php/docs/function.ob-list-handlers
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ob_list_handlers
(PHP 4 >= 4.3.0, PHP 5, PHP 7)
ob_list_handlers — List all output handlers in use
Description
ob_list_handlers ( ) : array
Lists all output handlers in use.
Return Values
This will return an array with the output handlers in use (if any). If output_buffering is enabled or an anonymous function was used with ob_start(), ob_list_handlers() will return "default output handler".
Examples
Example #1 ob_list_handlers() example
<?php//using output_buffering=Onprint_r(ob_list_handlers());ob_end_flush();ob_start("ob_gzhandler");print_r(ob_list_handlers());ob_end_flush();// anonymous functionsob_start(function($string) { return $string; });print_r(ob_list_handlers());ob_end_flush();?>
The above example will output:
Array
(
[0] => default output handler
)
Array
(
[0] => ob_gzhandler
)
Array
(
[0] => Closure::__invoke
)
See Also
- ob_end_clean() - Clean (erase) the output buffer and turn off output buffering
- ob_end_flush() - Flush (send) the output buffer and turn off output buffering
- ob_get_flush() - Flush the output buffer, return it as a string and turn off output buffering
- ob_start() - Turn on output buffering
