======fopen====== WMPRO, WMMINI FW >= 1.0 WMMEGA FW >= 2.0 Open a file for reading or writing ====Description==== int fopen ( string $filename, string $mode ) Attempt to open a file (or special stream) for reading or writing, and return the file handle for future operations ====Parameters==== $filename: If a path is omitted, the current directory will be used to search for the file. Relative paths are supported. Two special file names will open specific streams instead: * 'php:%%//%%stdin' - This will open a stream that will accept characters from a telnet console, allowing for interactive applications responding to keystrokes, when using mode 'r' * 'php:%%//%%stdout' - This will send output characters to the standard output device, such as a telnet console, when using mode 'w' $mode: The following strings are supported: * 'r' - Open the file (or stream) in read-only mode * 'w' - Open the file (or stream) in write mode, which will overwrite the file * 'a' - Open the file in append mode for writing, which will open the file and move the pointer to the end of the file ====Return Values==== Integer: File handle, or 0 if the attempt to open the file or stream fails The file handle may be used together with the other file functions that require a handle such as [[fgets()]], [[fwrite()]], [[fclose()]] and [[feof()]] ====Example==== ====See Also==== [[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 [[fread()]] - Read bytes from a file, stream or socket [[fgets()]] - Return a single line from a file, stream or socket, with optional size limit [[fwrite()]] - Write data to a file, stream or socket [[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 the size of a file, or the number of unread bytes in a stream or socket [[fseek()]] - Position the file pointer in an open file [[ftell()]] - Return the current position of a file read/write pointer [[fclose()]] - Close a file, stream or socket