ob_get_flush()

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.

Built-in function of PHP 8.5. The manual lists it as available in PHP 4 >= 4.3.0, PHP 5, PHP 7, PHP 8. This page is the reference card: signature, parameters and return value, plus the changelog and the example the manual provides.

What it does

This function calls the output handler (with the PHP_OUTPUT_HANDLER_FINAL flag), flushes (sends) it's return value, returns the contents of the active output buffer and turns off the active output buffer.

Signature

ob_get_flush(): string|false

Parameters

This function takes no parameters.

Return value

Returns the contents of the active output buffer on success or false on failure.

Example

A runnable snippet:

//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());

Output:

Array ( [0] => default output handler ) Array ( )

See also

ob_start(), ob_get_contents(), ob_flush(), ob_end_flush(), ob_get_clean()

All PHP 8.5 built-in functions

Reference card built from the PHP manual page ob_get_flush() (PHP documentation, CC BY 3.0). The page is generated from the manual, so the wording of the parameter and return value text follows php.net.