Is this "legal"?

[Anon]

I got a database table with some colums named "part1" "part2" "part3" etc.

I wish to print out all colums and I do it like this (script shortend):

$i = 1;
echo $row["part$i"];

It works but is that legal in PHP? If I use '' instead of "" it does not work.

[haji_hill]

Yeah, that's fine. The double quotes indicate that php should parse variable and carriage returns located w/in them, while the single quotes are a string literal, i.e. they are interpretted exactly as typed no parsing before-hand. Does that all make sense...

I think that's right anyway 😉
-Haji

[lawnmowerman]

Sure, this is legal. You could also do:

echo $row['part' . $i];

to concatenate $i to 'part'

🙂

-Rich

[Anon]

Doing it Rich's way is actually faster. Don't ask me why but thats how it works out 🙂

Mark

[lawnmowerman]

While I'm not positive why it is faster, I'd have to assume it is because PHP does not have to parse the entire string to add the variable.

If PHP sees a string in double quotes, the engine searches the string for variables for replacement.

With this single quote and concat method, the string is simply accepted as it is and the variable is tacked on to the end of it...no parsing.

-Rich