[SOLVED] Function: Display...

[Mr_J]

Fatal error: Call to undefined function: display_value() in /usr/www/users/medbqq/jaco/sams2/load18.php on line 8

 

code:

1  <?php

2            $value = 100;

3            function change_value($value) {

4            global $value;

5            echo "before: $value ";

6            $value = $value * 2;

7            }

8            display_value () ;

9            echo "After: $value <br>";

10  ?>

 

 

[paul2463]

means that

function display_value ()
{

some code

}

does not exist

[Mchl]

Perhaps you want:

 

<?php
$value = 100;
function change_value($value) {
global $value;
echo "before: $value ";
$value = $value * 2;
}
change_value () ;
echo "After: $value";
?>

 

Although this code doesn't make much sense.

 

 

 

[Mr_J]

Perhaps you want:

 

<?php
$value = 100;
function change_value($value) {
global $value;
echo "before: $value ";
$value = $value * 2;
}
change_value () ;
echo "After: $value";
?>

 

Although this code doesn't make much sense.

 

 

Almost...

This is what I did and it works!! Thanx allot

<?php

$value = 100;

function change_value() {

global $value;

echo "Before: $value ";

$value = $value * 2;

}

change_value() ;

echo "After: $value <br>";

?>

 

[Mchl]

Try something like this:

 

function change_value() {
global $value;
$value = $value * 2;
}

$value = 100;
echo "before: $value ";
change_value () ;
echo "After: $value";
?>

 

It's basically same code, but makes more sense this way