[RESOLVED] Function Trouble

[SquirrelJ]

<?php
function takeWhatYouGet()
{
$a = func_get_args();
foreach($a AS $key => $value)
{
echo "Slot:$key is $value <br>";
}
}
takeWhatYouGet('puppy', 17, 'Canada');


?>

I am looking into the following function and trying to work out how it works to help me understand PHP more.

I understand that we are calling a function called takewhatyouget and we are passing that function 3 optional parameters.

What I don’t understand is the

$a = func_get_args();
foreach($a AS $key => $value)

What is this doing??? Where is the value for $a coming form???

Thank you

[future448]

$a = func_get_args(); is basically getting any arguments that have been passed to the function and putting them into an array

In this case: 'puppy', 17, 'Canada'

So $a = array(0=>puppy, 1=>17, 2=>Canada);

[rincewind456]

Check the manual for the official explanation of [man]func_get_args/man.

In this case it is assigning the values to an array $a which (if you use [man]print_r/manto view) looks like this.

Array
(
    [0] => puppy
    [1] => 17
    [2] => Canada
)

This line

foreach($a AS $key => $value)

loops through then splits the array into key/value pairs. ie. key = [0] ,value = puppy.

The next line then outputs this

Slot:0 is puppy <br>Slot:1 is 17 <br>Slot:2 is Canada <br>

which if viewed in an HTML page looks like this

 
Slot:0 is puppy 
Slot:1 is 17 
Slot:2 is Canada

[SquirrelJ]

Cheers for the explanation i understand that now the func_get_args was confusing me

Cheers