(PHP 5 >= 5.1.2, PHP 7, PHP 8, PECL xmlwriter >= 1.0.0)

XMLWriter::flush -- xmlwriter_flushFlush current buffer


Object-oriented style

public XMLWriter::flush(bool $empty = true): string|int

Procedural style

xmlwriter_flush(XMLWriter $writer, bool $empty = true): string|int

Flushes the current buffer.



Only for procedural calls. The XMLWriter instance that is being modified. This object is returned from a call to xmlwriter_open_uri() or xmlwriter_open_memory().


Whether to empty the buffer or not. Default is true.

Return Values

If you opened the writer in memory, this function returns the generated XML buffer, Else, if using URI, this function will write the buffer and return the number of written bytes.


Version Description
8.0.0 writer expects an XMLWriter instance now; previously, a resource was expected.
8.0.0 This function can no longer return false.
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