Matthew H. North wrote:
Can't find this in the PHP docs, so: does anyone know whether
move_uploaded_file locks the target file during the process?
If move_uploaded_file does a rename within the same filesystem this isn't an
issue (on unix, anyway, the O/S just reassigns inodes rather than copying
data). But if it does a copy instead, or if it has to rename across
filesystems, any process that tries to read or write the file before
move_uploaded_file completes could be munging things.
I don't *think* it does any locking, it just calls the system functions
to handle the rename (so yeh across partitions/file systems it will do a
copy).
The internals list might be able to give a more precise answer..
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