Hi,
I need to do some text file manipulation of a text file from an html interface. I have a file with multiple lines where each line has 2 fields each (a mac address and an associated vlan). Here's an example of rht text file:
/tmp/TEST: ==================== a1b2.c3d4.e5cc VLAN3 a1b2.c3d4.e5dd VLAN4 a1b2.c3d4.e5ee IS a1b2.c3d4.e5ff VLAN6 a1b2.c3d4.e5a1 VLAN7 a1b2.c3d4.e5b2 VLAN8 a1b2.c3d4.e5c3 Printer a1b2.c3d4.e5d4 Guest a1b2.c3d4.e5e5 IS a1b2.c3d4.e5f6 VLAN6 a1b2.c3d4.e5a2 VLAN2 a1b2.c3d4.e5a3 VLAN4 ====================
Being an admin and not a developer of any kind, I'm having trouble reading in the file and being able to output specific lines and fields of a php array.
[ snip ]
Try this
<?php
$infile = "/tmp/TEST"; $contents = file($infile);
if (!$contents) { die("Could not read ".$infile); }
$tmp = array(); $lookup = array();
while(list($num,$line) = each($contents))
{
$tmp = explode(" ",$line);
$lookup[$tmp[0]] = $tmp[1];
}?>
Now you have an array with the "key" being the mac address, and the value being your vlan, something like this (actual output of the snippet above):
Array
(
[a1b2.c3d4.e5cc] => VLAN3
[a1b2.c3d4.e5dd] => VLAN4
)You can search this array for the mac address, and then output the associated lan, or you be a bit more on-topic, create a form with the associated data, like so :
<?php
echo '<table border="0">';
echo '<tr><td colspan="2">VLAN Editor</td></tr>';
while(list($mac,$vlan) = each($lookup))
{
echo '<tr><td>';
echo $mac;
echo '</td><td>';
echo '<input type="text" name="'.$mac.'" value="'.$vlan."' />';
echo '</td></tr>';
}
echo '</table>';?>
You can add the form bits however you like :)
What I want to eventually do is read in the "records" and fields of this file, present it as a form, allow admins to modify the second field and write that back to the text file (while backing up the original file).
In order to preserve your original data, I would suggest you make a backup of it first (copy the file if you have to).
If you will be doing a lot of read/writes and updates, consider using a database to store the information.
[ trimmed rest ]
Hope this helps, Burhan
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