Question

I want to transform my query into a more readable shape
I want to know that what difference does it makes if I use a

MySQL Query in this way:

$query3 = "update users set mykey='".$val2."' where userid='$val3'";

Or this way:

$query3 = "update users set mykey='$val2' where userid='$val3'";

Or this way

$query3 = "update users set mykey=$val2 where userid=$val3 ";

I am pretty sure that If I’ll use the last method the values which contain spaces will result in an error. But what about the 1st and 2nd?

Help will

Answer 1

This comes down to personal preference, but I find the following would be the easiest to read:

$query3 = "update users set mykey='".$val2."' where userid='".$val3."'";

This is merely due to syntax highlighting in my IDE by showing strings and variables in a different format.