Add to array in comma separated values from database - php

Question

my database table is named order. it has a row like order. I store values like this 1,2,3,4,5. Now i would like to add to array and from it out info..
I tried to do that but it is not working...
here is my code:
$sql = mysql_query("SELECT * FROM `order` WHERE `id` = ".$_GET['id']." LIMIT 1");
$row = mysql_fetch_assoc($sql);
$sql_order = $row['order'];
$array = array($sql_order);
foreach($array as $x) {
$sql = mysql_query("SELECT * FROM `product` WHERE `id` = ".$x." LIMIT 1");
$row = mysql_fetch_assoc($sql);
$sql_order = $row['order'];
echo $row['product_name'].'<br />';
}
if want check print_r($array) Output
Array ( [0] => 1,23,4,5 )
this one is not working.. i think its supposed to be like this: Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 [4] => 5 )

Answer 1

FASTEST APPROACH
You need to use explode() function. Here is an example of it :
<?php
$array = array('0' =>'1,2,3,4,5');
$array = explode(',', $array[0]);
var_dump($array);
?>
Here is your updated code, to get array in that format.
$sql = mysql_query("SELECT * FROM `order` WHERE `id` = ".$_GET['id']." LIMIT 1");
$row = mysql_fetch_assoc($sql);
$sql_order = $row['order'];
$array = array($sql_order);
$array = explode(',', $array[0]);
foreach($array as $x) {
$sql = mysql_query("SELECT * FROM `product` WHERE `id` = ".$x." LIMIT 1");
$row = mysql_fetch_assoc($sql);
$sql_order = $row['order'];
echo $row['product_name'].'<br />';
}
Note this is solution which you are looking for. But it isn't recommended due to reason told to you as comment.
PROPER WAY TO HANDLE THIS
You should ideally normalize your Database so this kind of problem don't come even in future to you.
Here is a proposed table structure change, which you can consider, depending on your need & time.
Remove order column from your table. Add a new table named order_suborders as follows:
| COLUMN | TYPE |
|:-----------|------------:|
|parent_order| int |
| order_id | int |
You can change name of columns and table according to your wish.
Move old data accordingly.
Use query SELECT order_suborders.order_id FROM order, order_suborders WHERE order.id = ".$_GET['id']." AND order.id = order_suborders.parent_order

Answer 2

you can use explod to split with ","
$sql = mysql_query("SELECT * FROM `order` WHERE `id` = ".$_GET['id']." LIMIT 1");
$row = mysql_fetch_assoc($sql);
$sql_order = $row['order'];
//$array = array($sql_order);
$array=explod(",",$sql_order);
foreach($array as $x) {
$sql = mysql_query("SELECT * FROM `product` WHERE `id` = ".$x." LIMIT 1");
$row = mysql_fetch_assoc($sql);
$sql_order = $row['order'];
echo $row['product_name'].'<br />';
}