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Full Discussion: Permission denied
Operating Systems Linux Ubuntu Permission denied Post 303033468 by jim mcnamara on Friday 5th of April 2019 07:44:39 PM
Old 04-05-2019
Does the user you are logged into pass this test?
set filename to whatever file you want then:
Code:
[ -w $filename ] && echo "Writable" || echo "Not Writable"

>> opens a file append (open file, move file pointer to the very end of the file), if the file does not exist it tries to create the file and opens it for write at position zero. Any of these steps can give the error you got.

What do you get? Note: Are you creating new file?? ... you need write privilege to the directory, otherwise just write privilege to the file itself and a minimum of execute on the path.

Last edited by jim mcnamara; 04-05-2019 at 08:51 PM..
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IS_WRITABLE(3)								 1							    IS_WRITABLE(3)

is_writable - Tells whether the filename is writable

SYNOPSIS
bool is_writable (string $filename) DESCRIPTION
Returns TRUE if the $filename exists and is writable. The filename argument may be a directory name allowing you to check if a directory is writable. Keep in mind that PHP may be accessing the file as the user id that the web server runs as (often 'nobody'). Safe mode limitations are not taken into account. PARAMETERS
o $filename - The filename being checked. RETURN VALUES
Returns TRUE if the $filename exists and is writable. EXAMPLES
Example #1 is_writable(3) example <?php $filename = 'test.txt'; if (is_writable($filename)) { echo 'The file is writable'; } else { echo 'The file is not writable'; } ?> ERRORS
/EXCEPTIONS Upon failure, an E_WARNING is emitted. NOTES
Note The results of this function are cached. See clearstatcache(3) for more details. Tip As of PHP 5.0.0, this function can also be used with some URL wrappers. Refer to "Supported Protocols and Wrappers" to determine which wrappers support stat(3) family of functionality. SEE ALSO
is_readable(3), file_exists(3), fwrite(3). PHP Documentation Group IS_WRITABLE(3)
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