ob_flush
PHP function
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(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)
Flush (send) the return value of the active output handler
Description
ob_flush(): bool
This function calls the output handler (with the PHP_OUTPUT_HANDLER_FLUSH flag), flushes (sends) its return value and discards the contents of the active output buffer.
This function does not turn off the active output buffer like ob_end_flush() or ob_get_flush() does.
ob_flush() will fail without an active output buffer started with the PHP_OUTPUT_HANDLER_FLUSHABLE flag.
Parameters Parameters
Return Values
Success
Errors/Exceptions
If the function fails it generates an E_NOTICE.