Strings

Strings

1) We use single quotes around strings whenever possible (e.g. strings that don't contain variables, single quotes, n, etc.). This is supposed to make less work for the PHP parser.

2) When an array variable isn't in a string, put quotes around string-literal keys so they are not regarded as constants:

// OK

echo $row[$key];



// Wrong, unless key is a constant

echo $row[key];



// Right

echo $row['key'];



// OK, since it's in a string

echo "Text: $row[key]";

3) Remember, you can break out of PHP mode for large sections of HTML. This is faster than echo'ing and you don't need to escape quotes.