PHP 8 >= 8.1.0
fsync - Synchronizes changes to the file (including meta-data)
Code Examples

fsync( resource$stream ): bool

This function synchronizes changes to the file, including its meta-data. This is similar to fflush, but it also instructs the operating system to write to the storage media.



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.

Related Functions

Example of fsync

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