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using exec() to produce a directory listing
<?php
exec('ls -al .', $output, $return );
/*
when you use the -l flag w/ ls, there will be a string of characters on the left for each file, which may look something like -rwxr-xr-x
the first character describes what the item is:
- = regular file
d = directory
b = special block file
c = special character file
l = symbolic link
p = named pipe special file
example: lrwxr-xr-x would be a symbolic link
the next 9 characters are 3 groups of 3 characters each, which tell the read/write/execute permissions for user, group, and other respectively:
r = read
w = write
x = execute
using the above example of lrwxr-xr-x, you would have symbolic link file, where the user can read, write and execute (rwx), and the group and others can read and execute (r-x)
*/
echo '<p>Returned: '.$return.'</p>';
foreach ( $output as $file )
{
echo $file.'<br>';
}
?>
learn more about some of the PHP functions used in this snippet: dir, each, echo, exec, file, for, foreach, link, list, next, return
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