Need some help with variables.

Anon

This is what I have:

for ( $k = 1 ; $k <= $hdd_number ; $k++) {

$insert_hdd = "insert into hdd values (NULL,'$hdd_size$k','$comp_id','$hdd_type$k')";

$hdd_result = mysql_query($insert_hdd);

}//End HDD For

What I am trying to do is insert the contents of $hdd_type1,$hdd_type2 .... and so one. The number of hard drives that were inserted depends on the amount that was entered into the form. I have a for loop that puts the information gathered into $hdd_type1 $hdd_size1....and so on. What I end up with in my database is $hdd_type1 or just 1 because PHP only sees the contents of the $k variable and doesn't evaluate the variable as $hdd_type1. Please help!!! I know you advanced guys probably know how to get around this. I read the "variable variables" section but it only confused me more.

Thanks

Brendan

Anon

What your looking for is variable variables. The trick is to use what I like to call the squigley braces 🙂 So in your example, we would use:

for ( $k = 1 ; $k <= $hdd_number ; $k++) {

$insert_hdd = "insert into hdd values (NULL,'".${'hdd_size'.$k}."','$comp_id','".${'hdd_type'.$k}."')";

$hdd_result = mysql_query($insert_hdd);

}

Notice how we use the quotes and the concatonator (the .) inside of the braces after the $. Basically, PHP just uses that as a string and then uses the variable of that name in its place.

For more information, you can look here:

http://www.php.net/manual/en/language.variables.variable.php

Hope that helps!

Chris King

Anon

EXACTLY what I wanted thanks!!!!!