Solved

mysql while into array and output comma separated list

Posted on 2011-03-22
8
883 Views
Last Modified: 2012-05-11
I'm trying to do a mysql while and output the resulting list of IDs with commas

i.e. 123,232,432,453 (without a trailing comma)
I can easily add a comma but this leaves a trailing comma at the end and I think there must be a really easy way to use array() implode/explode but haven't managed to suss out the right method or combination.

    while( $row = $modx->db->getRow( $res ) ) {
	$fullidlist .= $row['contentid'];
    }
//need to get the $fullidlist to output as a comma separated list

Open in new window

0
Comment
Question by:freshwaterwest
  • 3
  • 2
  • 2
  • +1
8 Comments
 
LVL 8

Expert Comment

by:Rik-Legger
ID: 35189076
trim($comma_seperated_string ",");

Open in new window


This will remove a leading and trailing comma.
0
 
LVL 8

Expert Comment

by:Rik-Legger
ID: 35189086
trim($comma_seperated_string, ",");

Open in new window


Updated, made a typo.
0
 
LVL 34

Assisted Solution

by:Beverley Portlock
Beverley Portlock earned 50 total points
ID: 35189100
Using arrays, try this (UNTESTED)

    $arr = array();

    while( $row = $modx->db->getRow( $res ) ) {
	$arr [] = $row['contentid'];
    }

    $fullidlist = implode(",", $arr);

//need to get the $fullidlist to output as a comma separated list

Open in new window

0
Free learning courses: Active Directory Deep Dive

Get a firm grasp on your IT environment when you learn Active Directory best practices with Veeam! Watch all, or choose any amount, of this three-part webinar series to improve your skills. From the basics to virtualization and backup, we got you covered.

 
LVL 143

Expert Comment

by:Guy Hengel [angelIII / a3]
ID: 35189136
you could of course also solve this with mysql directly:

select group_concat(contentid) from yourtable where ...

0
 

Author Comment

by:freshwaterwest
ID: 35189265
many thanks all - angellll if I use the mysql group_concat in select how would I get this into a comma sep list?  
0
 
LVL 143

Accepted Solution

by:
Guy Hengel [angelIII / a3] earned 450 total points
ID: 35189284
you just fetch the value, you get only 1 row.

$sql = "select group_concat(contentid) from yourtable where ... ";
$res = mysql_query($sql) or die (mysql_error());
$list = mysql_result($res, 0,0 );
print $list;

Open in new window

0
 

Author Comment

by:freshwaterwest
ID: 35190205
brilliant thanks angellll

I used the group_concat and then:

    $row = $modx->db->getRow( $res, 0,0 );
	$fullistarray = implode(',',$row);

Open in new window


works perfectly
0
 

Author Closing Comment

by:freshwaterwest
ID: 35190238
thanks again - sorted!
0

Featured Post

The Eight Noble Truths of Backup and Recovery

How can IT departments tackle the challenges of a Big Data world? This white paper provides a roadmap to success and helps companies ensure that all their data is safe and secure, no matter if it resides on-premise with physical or virtual machines or in the cloud.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
mysql db 3 69
php help 34 58
selector:validator cookies 4 30
simple html dom php accessing table/cell  values 4 19
Developers of all skill levels should learn to use current best practices when developing websites. However many developers, new and old, fall into the trap of using deprecated features because this is what so many tutorials and books tell them to u…
This article discusses four methods for overlaying images in a container on a web page
The viewer will learn how to dynamically set the form action using jQuery.
The viewer will learn how to look for a specific file type in a local or remote server directory using PHP.

856 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question