PHP: Hypertext Preprocessor (original) (raw)
ob_get_flush
(PHP 4 >= 4.3.0, PHP 5, PHP 7, PHP 8)
ob_get_flush — Flush (send) the return value of the active output handler, return the contents of the active output buffer and turn it off
Description
ob_get_flush() will fail without an active output buffer started with the**[PHP_OUTPUT_HANDLER_REMOVABLE](outcontrol.constants.php#constant.php-output-handler-removable)** flag.
ob_get_flush() will flush (send) the return value of the output handler even if the active output buffer was started without the**[PHP_OUTPUT_HANDLER_FLUSHABLE](outcontrol.constants.php#constant.php-output-handler-flushable)** flag.
Parameters
This function has no parameters.
Return Values
Returns the contents of the active output buffer on success or [false](reserved.constants.php#constant.false) on failure.
Errors/Exceptions
If the function fails it generates an [E_NOTICE](errorfunc.constants.php#constant.e-notice).
Examples
Example #1 ob_get_flush() example
<?php //using output_buffering=On print_r(ob_list_handlers());//save buffer in a file $buffer = ob_get_flush(); file_put_contents('buffer.txt', $buffer);print_r(ob_list_handlers()); ?>
The above example will output:
Array ( [0] => default output handler ) Array ( )
See Also
- ob_start() - Turn on output buffering
- ob_get_contents() - Return the contents of the output buffer
- ob_flush() - Flush (send) the return value of the active output handler
- ob_end_flush() - Flush (send) the return value of the active output handler and turn the active output buffer off
- ob_get_clean() - Get the contents of the active output buffer and turn it off
Found A Problem?
16 years ago
`Hi,
this is just to add a behavior that I haven't understud at first place.
ob_get_flush actually returns the content of the buffer as a text but also it sends the buffer back to the browser so that it's displayed on user screen.
Use ob_get_clean if you do not want the buffer to be send to the user
`