user functions

I am a bit confused by writing or using my user functions.

The only way I know at the moment to call my own functions is to put them in
one file with the main program.

this example comes from http://de.php.net/manual/de/functions.php
<?php

function foo($foo, $bar = "bar")
{
echo $foo.$bar;
}

echo foo("foo");
//gives: foobar

echo foo("foo","bar2");
//gives foobar2

?>

I would prefer one file one function. How could I do this or is this
absolutly wrong to do it this way. How did php know where to look for a
user function.

regards
Reimar

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"Reimar Bauer" <R.Bauer@fz-juelich.de> wrote in message
news:c76gmp$9m5c$1@zam602.zam.kfa-juelich.de...
> I am a bit confused by writing or using my user functions.
>
> The only way I know at the moment to call my own functions is to put them
in
> one file with the main program.
>
> this example comes from http://de.php.net/manual/de/functions.php
> <?php
>
> function foo($foo, $bar = "bar")
> {
> echo $foo.$bar;
> }
>
> echo foo("foo");
> //gives: foobar
>
> echo foo("foo","bar2");
> //gives foobar2
>
> ?>
>
> I would prefer one file one function. How could I do this or is this
> absolutly wrong to do it this way. How did php know where to look for a
> user function.

Go look up include(), require() etc.

Garp

Reimar Bauer wrote:
> I am a bit confused by writing or using my user functions.
>
> The only way I know at the moment to call my own functions is to put them in
> one file with the main program.
>
> this example comes from http://de.php.net/manual/de/functions.php
> <?php
>
> function foo($foo, $bar = "bar")
> {
> echo $foo.$bar;
> }
>
> echo foo("foo");
> //gives: foobar
>
> echo foo("foo","bar2");
> //gives foobar2
>
> ?>
>
> I would prefer one file one function. How could I do this or is this
> absolutly wrong to do it this way. How did php know where to look for a
> user function.


I usually put my functions in a separate file which I include.

<?php // foo-function.inc.php
function foo($foo, $bar = 'bar') {
echo $foo, $bar;
}
?>


Then I include this file in my scripts. For instance, index.php could be

<?php // index.php
require_once 'foo-function.inc.php';

echo foo('foo');
// gives foobar

echo foo('foo', 'bar2');
// fives foobar2
?>


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