Insert iteration data into database - php

Question

i'm using codeigniter.I want to insert data in every iteration to database.
controller
$fee=500;
$trans_fee=300;
$ins_arr=array(2,3);
$ins_array_count=count($ins_arr) ;
if(!in_array('1', $ins_arr))
{
for($i=0;$i<$ins_array_count;$i++)
{
$ins.'_'.$ins_arr[$i]= ($fee+$trans_fee);
$ins_sum+= $ins_.$ins_arr[$i];
}
}
i want to get the data inside this variable like( $ins_2 and $ins_3) and insert the value of $ins_2 and $ins_3 into db
I got value of $ins_sum correctly
Anyone please answer me

Answer 1

Wrap them in {}:
Using ${} is a way to create dynamic variables, simple example:
${'a' . 'b'} = 'hello there';
echo $ab; // hello there
So,
$fee = 500;
$trans_fee = 300;
$ins_arr = array(2,3);
$ins_array_count=count($ins_arr) ;
$ins_sum = 0;
if(!in_array('1', $ins_arr))
{
for($i=0;$i<$ins_array_count;$i++)
{
//$ins_.$ins_arr[$i] = ($fee+$trans_fee);
${"ins_" . $ins_arr[$i]} = ($fee+$trans_fee);
$ins_sum += ${"ins_" . $ins_arr[$i]};
}
}
echo $ins_2; //result of ins_2 = 800
echo "<br />";
echo $ins_3; //result of ins_3 = 800
echo "<br />";
echo $ins_sum; // total ins sum = 1600