This is my first php program!

50
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Chapter 2: Language Basics
case 'bruno':
print('yes');
break;
default:
print('no');
break;
}
Commenting the fact that you are using a fall-through case in a
switch
is a good idea,
so someone doesn’t come along at some point and add a
break
, thinking you had for-
gotten it.
You can specify an optional number of levels for the break keyword to break out of.
In this way, a
break
statement can break out of several levels of nested
switch
state-
ments. An example of using
break
in this manner is shown in the next section.
while
The simplest form of loop is the
while
statement:
while (
expression
)
statement
If the
expression
evaluates to
true
, the
statement
is executed and then the
expression
is reevaluated (if it is
true
, the body of the loop is executed, and so on). The loop
exits when the
expression
evaluates to
false
.
As an example, here’s some code that adds the whole numbers from 1 to 10:
$total = 0;
$i = 1;
while ($i <= 10) {
$total += $i;
}
The alternative syntax for
while
has this structure:
while (
expr
):
statement;
...
;
endwhile;
For example:
$total = 0;
$i = 1;
while ($i <= 10):
$total += $i;
endwhile;
You can prematurely exit a loop with the
break
keyword. In the following code,
$i
never reaches a value of
6
, because the loop is stopped once it reaches
5
:
$total = 0;
$i = 1;
while ($i <= 10) {
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