Variable functions

Voorbeeld 13-1 .

 
?php

 
function

 
foo(

 
)

 
{

 
echo

 
"In

 
foo(

 
)

 
br

 
\n"

 
;

 
}

 
function

 
bar

 
(

 
$arg

 
=

 
'

 
'

 
)

 
{

 
echo

 
"In

 
bar()

 
;

 
argument

 
was

 
'$arg'

 
.

 
br

 
\n"

 
;

 
}

 
$func

 
=

 
'foo'

 
;

 
$func()

 
;

 
$func

 
=

 
'bar'

 
;

 
$func

 
(

 
'test

 
'

 
)

 
;

 
?