ob_list_handlers
(PHP 4 >= 4.3.0, PHP 5, PHP 7)
ob_list_handlers — List all output handlers in use
Description
array ob_list_handlers ( void )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=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() - 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
← ob_implicit_flush
ob_start →
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