Created
December 15, 2020 11:20
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how to open, read, and close a file on the server.
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Modes Description | |
r -> Open a file for read only. File pointer starts at the beginning of the file | |
w -> Open a file for write only. Erases the contents of the file or creates a new file if it doesn't exist. File pointer starts at the beginning of the file | |
a -> Open a file for write only. The existing data in file is preserved. File pointer starts at the end of the file. Creates a new file if the file doesn't exist | |
x -> Creates a new file for write only. Returns FALSE and an error if file already exists | |
r+ -> Open a file for read/write. File pointer starts at the beginning of the file | |
w+ -> Open a file for read/write. Erases the contents of the file or creates a new file if it doesn't exist. File pointer starts at the beginning of the file | |
a+ -> Open a file for read/write. The existing data in file is preserved. File pointer starts at the end of the file. Creates a new file if the file doesn't exist | |
x+ -> Creates a new file for read/write. Returns FALSE and an error if file already exists |
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