how to add , edit and delete comma separated value of database .? - php

Question

i have created one table called role and the fields are like (roleid,role,prohibitedprocess,prohibitedports) here roleid is unique. and i have a comma separated value for "prohibitedprocess" field .(ex: prohibitedprocess---> skype,teamviwer,notepad).
the problem is how to add and edit and delete that comma separated value of prohibitedprocess .is it possible ?
i have fetch the code form the data base .code is
<?php
$sql = "SELECT roleid, prohibitedprocess, prohibitedports FROM role WHERE role='Basic'";
$option='';
$result = mysql_query($sql);
while($row = mysql_fetch_assoc($result))
{
$pro_proc = $row['prohibitedprocess'];
$lst = explode(",",$pro_proc);
//Print in Option Box
foreach($lst as $exp)
{?>
<tr>
<td><?php echo $exp;?></td>
<td>Edit</td>
<td>Delete</td></tr>
<?php
}
}
?>
How to do this please help me

Answer 1

You can edit the whole string . .
I mean just using str_replace function
e.g
$string = "skype,teamviwer,notepad";
$old_value = "skype";
$new_value = "facebook";
$new_string = str_replace($old_value,$new_value,$string);
Then simply update this new string into database table. .

Answer 2

One way would be to retrieve all of 'keywords' in an input element and edit them like a sentence. However, for what you want to do, you may wanna add a new table called prohibitedprocess and use roleid as a foreign key. Then retrieve from that table according the roleid.
eg: SELECT item FROM prohibitedprocess p, role r WHERE p.roleid = r.roleid

Answer 3

It may be better to make another table for that relation, then you could edit it normally. Otherwise you can take your comma separated list and do something in javascript.
var commaSeparatedList = <?php echo $commaSeparatedList;?>
var realData = commaSeparatedList.split(',');
// when the user adds something you can add to the array or delete
// from the array
var newCommaList = readData.join([separator = ',']);
// some kind of get/post request that sends the new comma list
<?php
$newList = GET_REQUEST_PARAMS["newCommaList"];
// sql update query that updates the comma list
?>
I haven't used php in a while so I know GET_REQUEST_PARAMS isn't a thing but i'm sure you know how to get the parameters.
Or without javascript you can use a form that posts back all the names of prohibited things
<?php
$newList = ""
//foreach through the get params which contain the names
foreach()
{
$newList += getParam + ",";
}
// some code to remove that last comma
// sql update
?>