How to retrive comma seaparated values from database? [closed] - php

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I want to retrieve comma separated values from a database and store each value in a variable.
For example: in my column I have the following: 2,3,5,8,9,21
I'd like to store the numbers inside variables like this:
$a=2
$b=3
$c=5
// and so on…

Answer 1

If you wanna load the string that contain integers separated with ',' or '.' or 'a' or ';' do:
If you wanna go for ',':
$char = ',';
If you wanna go for '.':
$char = '.';
If you wanna go for 'a':
$char = 'a';
If you wanna go for ';':
$char = ';';
(I added this to help anyone that have any other syntax of string)
To connect you can do(Documentation):
$connection = mysql_connect('adress', 'mysql_user', 'mysql_password');
Okay, we have connection. Now take the data (Documentation).
$database = "DatabaseWithTableWithIntegers";
$table = "TableWithIntegers";
$rowname = "RowWithIntegers";
$sql = "USE $database; SELECT $rowname FROM $table;";
$result = mysql_query ($sql, $connection);
Now declare something like list:
$arr = []; // array for fetching
$vrr = []; // array for fetched
Next step is to fetch rows(Documentation):
while($row = mysql_fetch_row($result)){
Row have string like "2,142,124,53,3511,513,531,53" if separator was an "," and the record exists in database/table.
The magical function is explode, it slices all the segments into an array(Documentation):
$arr = explode($char, $row[$rowname]); //rowname is to be 100% sure
The last thing is to do the conversion(Documentation)
for($arr as &$a){
$value = intval($a);
array_push($vrr, $value); // to save the value into vrr([Documentation][6])
}}

Answer 2

have a look on below solutions:
Method 1
$alphabet = range('a', 'z');
$str = '2,3,5,8,9,21';
$str_array = explode(',', $str);
foreach($str_array as $k=>$v){
${$alphabet[$k]} = $v;
}
echo $a,$b,$c,$d;
Method 2
$var = 'a';
$str = '2,3,5,8,9,21';
$str_array = explode(',', $str);
foreach($str_array as $k=>$v){
${$var} = $v;
++$var;
}
echo $a,$b,$c,$d;
both solution's output:
2358

Answer 3

if you are storing data in form of a1,a2,a3 in a single column, why don't you just fetch the data and split it using explode() method?
if you are using associative array, then use json_encode() when storing the data as string, and then decode it using json_decode() after fetched from database