Question

It might be a simple task. But I am new to PHP.

I am creating a string of values getting from database for a specific purpose.

How to remove last char from string.

$str='';
foreach($dataarray as $value)
{
   $str.=$value."##";
 }

it gives me string like ABC##DEF##GHI##

I have to remove last 2 chars ##

EDIT:

have shown here sample code . actull y array is 2D. so cant use implode()

Answer 1

If the implode method isn’t appropriate, then after your foreach loop, you can try one of these functions:

http://www.php.net/manual/en/function.rtrim.php

$str = rtrim($str,'#');

http://php.net/manual/en/function.substr.php

$str = substr($str,-2);

If you have a 2D array, you could still use the implode func like this:

$a = array();
foreach( $foo as $bar )
  foreach( $bar as $part )
    $a[] = $part;
$str = implode('##',$a);