Removing Last comma from an array row

[azonicds2]

Hi guys

 

Had some great help from here before so thought id try my luck again.

 

Basically i have an array query that works fine, but the echo is going into a piece of Javascript, its basically telling the Java what image paths to use for a Slideshow, each of these needs to be seperated by a comma. Accept for the last one in the array needs to have the comma removed.

 

I can remove the last comma for each row no problem but thats where the problem lies. I only want to remove it from the last row in the array.

 

Any ideas?

 

My code is as follows:

 

<?php
$query2 = mysql_query("SELECT * FROM homeimages ORDER by Filename ASC") or die(mysql_error());
while ($row2=mysql_fetch_array($query2)){

$string = "['http://www.benbrownphotography.co.uk/images/home/upload/".$row2['Filename']."'],";
$output = substr_replace($string,"",-1);

echo "$output";

}
?>

 

This is fine for if there is only one row in the database but when you add more it is obviously removing the comma from every row.

 

How can i remove it only from the last row in the array?

 

Thanks a lot in advance!

Danny

[robert_gsfame]

substr($string,0,strlen($string)-1)

[azonicds2]

substr($string,0,strlen($string)-1)

 

Wont that do it for every row though, rather than just the last one?

 

Thanks

[azonicds2]

Have tried that Robert and i can't get that to work either.

 

Any other ideas? Looking at my code am i going about this the wrong way, should i be using some sort of count?

 

Thanks a lot!

[ignace]

Another method would be to use implode. I rewrote your code and enhanced it (in a few parts):

 

function get_file_name($resource) {
  list($filename) = mysql_fetch_row($resource);
  return $filename;
}

$result = mysql_query('SELECT Filename FROM homeimages ORDER by Filename ASC');
$files = array();
if (false !== $result && ($num_rows = mysql_num_rows($result)) > 0) {
    $files = array_map('get_file_name', array_fill(0, $num_rows, $result));
}

echo '["http://www.benbrownphotography.co.uk/images/home/upload/',
       implode('"],["http://www.benbrownphotography.co.uk/images/home/upload/', $files),
     '"]';

 

If you have PHP5.3 running on your server you may use closures instead of get_file_name()

[azonicds2]

Ignace you are a god! That worked brilliantly.

 

Thank you very much for that. Very much appreciated! 

 

I had tried to use implode before but i wasn't using it correctly obviously.

 

Thanks mate!

 

Danny