[SOLVED] Function

[MarcusZ]

Hi!

This script is supposed to shorten the sms-message to only a number.

The function is not executed when running the script which gives me the same string that I inserted.

What do I do wrong?

 

<?php

 

$sms = 'sunds nv1b 5';

 

function deleteSMS($delete_txt)

{

$sms = str_replace($delete_txt, '',$sms);

}

 

deleteSMS('sunds');

deleteSMS('nv1b');

deleteSMS(' ');

 

echo $sms;

 

?>

[ignace]

function deleteSMS(&$sms, $delete_txt)

{

$sms = str_replace($delete_txt, '',$sms);

}

 

or:

 

function deleteSMS($delete_txt)

{

global $sms;

$sms = str_replace($delete_txt, '',$sms);

}

[MarcusZ]

thank you very much, used the second alternative. I need to do some reading on global and (&$sms, $delete_txt)