Single quotes... escape them?

[loveitandhateit]

I am reading a php book where it says that all quotes (single or double) have to be escaped in print and echo statements. But after hours of sweat I realized that it doesn't apply to the single ones. Is that a mistake or did the author mean something else?

Also
How do I make Arrays global?
Let's say:

function someFunction() {
<FORM ACTION="action.php" METHOD="POST">
<INPUT TYPE="text" NAME=Array[StudentName]>
</FORM>
}

function someOtherFunction() {
That will in some way make use of Array[StudentName]
}

How do I make the Array[StudentName] public?

[ereptur]

If your print or echo statements begin with double-quotes then you have to escape any double-quotes in your string. If they begin with single-quotes, then you have to escape your single-quotes in your string. Make sense?

example1:
print "John said, \"I know how to do it\"";

example2:
print 'These are the contents of John\'s string';

If you are using double-quotes to surround your string and you have single-quotes in the string, they do not need to be escaped and vice versa.