Page 1 of 1
php function
Posted: Wed Mar 10, 2004 11:53 am
by after_shox
ok this may seem stupid but i just spent about an hour trying to get php to pass a variable to a function. Can someone tell me why this doesnt work ?
<?php
$num ="10";
function square ($num)
{
return $num * $num;
}
echo "$num";
?>
Posted: Wed Mar 10, 2004 1:10 pm
by Weirdan
you have to call the function:
Code: Select all
$num ="10";
function square ($num)
{
return $num * $num;
}
echo square($num);
Posted: Wed Mar 10, 2004 1:39 pm
by after_shox
Thanks but how to i get the value back so i can use it in any statement as a variable ? The "Gobal" option ?
Posted: Wed Mar 10, 2004 2:02 pm
by TheBentinel.com
after_shox wrote:how to i get the value back
Assign it to a variable, or just use the function call wherever you'd use a variable:
Code: Select all
$num ="10";
function square ($num)
{
return $num * $num;
}
$returned_value = square($num);
echo $returned_value;
if (square(5) == 25)
{
echo "yep";
}
Hope it helps!
Posted: Wed Mar 10, 2004 2:36 pm
by after_shox
Yeah think i got it. Thanks for your help.
