ob_list_handlers
Description
The ob_list_handlers of Output Control for PHP list all output handlers in use.
Syntax
ob_list_handlers(): array
Parameters
Return
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
1 · return
<? ob_start(); $return = ob_list_handlers(); print_r($return); ?>
Array
(
[0] => default output handler
[1] => default output handler
)
2 · return · output_buffering enabled
<? $return = ob_list_handlers(); print_r($return); ?>
Array
(
[0] => default output handler
)
3 · return · gzip
<? $callback = 'ob_gzhandler'; ob_start($callback); $return = ob_list_handlers(); print_r($return); ?>
Array
(
[0] => default output handler
[1] => ob_gzhandler
)
4 · return · anonymous
<?
$callback = function($string)
{
return $string;
};
ob_start($callback);
$return = ob_list_handlers();
print_r($return);
?>Array
(
[0] => default output handler
[1] => Closure::__invoke
)
5 · return · rewrite
<? $name = 'name'; $value = 'value'; output_add_rewrite_var($name, $value); $return = ob_list_handlers(); print_r($return); ?>
Array
(
[0] => default output handler
[1] => URL-Rewriter
)
