如何在php中将零索引逗号分隔值分解为单个字符串

Question

I want to break comma seperated values which are retrieved from database and then put each individual in a string and print it in a for loop only. I am getting the values from database but i am not be able to break values. Below is the code what i have done right till now.Please help to solve my issue. Thanks in advance.

$query="select * from create_segment";
$result = mysql_query($query,$link) or die(mysql_error());
$number_of_segment=mysql_num_rows($result);
while($row=mysql_fetch_assoc($result))
{
    $segments[]=$row;
}

foreach($segments as $success) {
 $thePostIdArray = explode(', ', $success['subjects']);
 for($i=0; $i < count($thePostIdArray); $i++)
  {
     echo "string...".$strings=$thePostIdArray[$i];  
  }
} 

It output:

string...1,2,3,4,5,6,7,8,9,10
string...1,2,3,4,5,6,7,8

but i want something like this:

for(......)
{
echo "values...".$i;
}

which should output

values...1
values...2
values...3 and so on.

my database structure is like:

id    subjects

1     1,2,3,4,5
2     1,2,7

Answer 1

Please try to use ',' instead of ', ' in your

explode(', ', $success['subjects']);

statement so it would look like:

explode(',', $success['subjects']);