08-22-2017
If it is made very sure that there will be only one numbered file version at a time, then why do you need to find out the sequence number? Create the symlink immediately to the only version that exists.
I presume the dosym command does exactly this: create a symbolic link. If not so, what does it do?
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SYMLINK(3) 1 SYMLINK(3)
symlink - Creates a symbolic link
SYNOPSIS
bool symlink (string $target, string $link)
DESCRIPTION
symlink(3) creates a symbolic link to the existing $target with the specified name $link.
PARAMETERS
o $target
- Target of the link.
o $link
- The link name.
RETURN VALUES
Returns TRUE on success or FALSE on failure.
CHANGELOG
+--------+---------------------------------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+---------------------------------------------------+
| 5.3.0 | |
| | |
| | This function is now available on Windows plat- |
| | forms (Vista, Server 2008 or greater). |
| | |
+--------+---------------------------------------------------+
EXAMPLES
Example #1
Create a symbolic link
<?php
$target = 'uploads.php';
$link = 'uploads';
symlink($target, $link);
echo readlink($link);
?>
NOTES
Note
Windows users should note that this function will only work if the system you run PHP from is Windows Vista/Windows Server 2008 or
newer. Windows versions prior to that do not support symbolic links.
SEE ALSO
link(3), readlink(3), linkinfo(3).
PHP Documentation Group SYMLINK(3)