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uphp:functions:fopen [2017/04/04 13:19] jeff |
uphp:functions:fopen [2021/09/13 05:57] (current) |
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====Description==== | ====Description==== | ||
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- | <span style=" | + | <span style=" |
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- | Attempt to open a file or stream for reading or writing, and return the file handle for future operations | + | Attempt to open a file (or special |
====Parameters==== | ====Parameters==== | ||
< | < | ||
+ | |||
* ' | * ' | ||
* ' | * ' | ||
< | < | ||
+ | |||
* ' | * ' | ||
* ' | * ' | ||
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- | ====Return | + | ====Return |
- | Upon success it returns a file handle | + | < |
- | If the attempt to open the file or stream fails it will return 0 | + | The file handle may be used together with the other file functions that require a handle such as [[fgets()]], |
====Example==== | ====Example==== | ||
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====See Also==== | ====See Also==== | ||
- | |||
- | [[f485open()]] - Open the RS-485 port at the specified baud rate and parity | ||
[[fseropen()]] - Open the serial port at the specified baud rate with optional parameters | [[fseropen()]] - Open the serial port at the specified baud rate with optional parameters | ||
+ | |||
+ | [[f485open()]] - Open the RS-485 port at the specified baud rate and parity | ||
[[fsockopen()]] - Open an internet socket connection with optional timeout | [[fsockopen()]] - Open an internet socket connection with optional timeout | ||
- | [[fclose()]] - Close a file, stream or socket | + | [[fread()]] - Read bytes from a file, stream or socket |
- | [[feof()]] - Test if no more data is available in a file or stream | + | [[fgets()]] - Return a single line from a file, stream |
- | [[fgets()]] - Return a single line from a file or stream, with optional size limit | + | [[fwrite()]] - Write data to a file, stream |
- | [[fread()]] - Return | + | [[tar_put()]] - Add a file to an open file in TAR format |
+ | |||
+ | [[feof()]] - Test if no more data is available in a file, stream or socket | ||
+ | |||
+ | [[filesize()]] - Return | ||
[[fseek()]] - Position the file pointer in an open file | [[fseek()]] - Position the file pointer in an open file | ||
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[[ftell()]] - Return the current position of a file read/write pointer | [[ftell()]] - Return the current position of a file read/write pointer | ||
- | [[fwrite()]] - Write data to a file or stream | + | [[fclose()]] - Close a file, stream |
- | + | ||
- | [[tar_put()]] - Add a file to an open file in TAR format | + | |
- | + | ||
- | [[chdir()]] - Change uPHP's current directory | + | |