ob_list_handlers

(PHP 4 >= 4.3.0, PHP 5, PHP 7)
List all output handlers in use
array ob_list_handlers ( void )

Lists all output handlers in use.

Returns:

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:
ob_list_handlers() example
<?php
//using output_buffering=On
print_r(ob_list_handlers());
ob_end_flush();

ob_start("ob_gzhandler");
print_r(ob_list_handlers());
ob_end_flush();

// anonymous functions
ob_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() -

ob_end_flush() -

ob_get_flush() -

ob_start() -

doc_php
2016-02-24 15:53:55
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