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fflush

Flushes the output to a file (PHP 4 >= 4.0.1, PHP 5)
bool fflush ( resource handle )

This function forces a write of all buffered output to the resource pointed to by the file handle.

Parameters

handle

The file pointer must be valid, and must point to a file successfully opened by fopen() or fsockopen() (and not yet closed by fclose()).

Return Values

Returns TRUE on success or FALSE on failure.