separate with commas

Question

hey there I have this,

$following_user_id .= $row[\'following_user_id\'];

and I get

44443344330

then I use th

Answer 1

Try using arrays, example

<?php
$arr = array();
$arr[] = 'foo';
$arr[] = 'bar';
echo implode(',', $arr);

Answer 2

Check implode: http://php.net/manual/en/function.implode.php

Code example: I'm assuming your using some sort of loop?

$arrUsers = new array();

... your loop code here ...
array_push($arrUsers, $row['following_user_id']);
... end loop code .. 
$following_user_id = impload(",", $arrUsers); 

Answer 3

Collect your data into an array of strings and use the implode function:

$uids = array();
while($row = mysql_fetch_assoc($result)){
    array_push($uids, $row['following_user_id']);
}
$following_user_id = implode(',', $uids);

Answer 4

You can split the string into an array of characters, then implode the array.

$array = preg_split('//', $following_user_id, -1, PREG_SPLIT_NO_EMPTY);

echo implode( ',', $array );

Answer 5

This works for me:

<?php
$following_user_id.= $row['following_user_id'];
$following_user_id=preg_replace('/(?<=\d)(?=(\d)+(?!\d))/',',',$following_user_id);
echo $following_user_id."<br>";
?>

Answer 6

$following_user_ids = array();

//loop this:
$following_user_ids[] = $row['following_user_id'];

$user_ids_string = implode(',',$following_user_ids);