Strings
Strings are text, pure and simple. There's two ways of storing strings, inside single quotes and double-quotes. Using "double-quotes" allows you to use special characters like \n for a newline. The backslash character marks the next character as special, though the only characters you can backslash in 'single-quoted' strings are \' (a single quote) and \\ (a backslash).
Some other special characters (for double-quoted strings)
carriage-return. In DOS text-files, a new line is \r\n, though in practice in Windows you can get away with UNIX format, which is just \n
The most important difference between single and double-quoted strings is that double-quoted strings can contain variable names:
PHP Code:
$foo = 'This doesn\'t work'; // Oh yes it does!
$foo = "Matt's second line also works";
$age = 18;
echo 'Bob is $age'; // prints "Bob is $age"
echo "Bob is $age"; // prints "Bob is 18"
Check out the manual for more string stuff -- this is generally enough to get along with in daily use.
This tutorial was written by another one of my friends, if you would like to use this tutorial please send me a PM