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change variable code doesn't work

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  #1  
Old October 29th, 2003, 01:19 PM
aberns aberns is offline
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change variable code doesn't work
Unfortunately, the code doesn't work. The variable does not change to Blueberry. It remains strawberry.

Quote:
<?php

// set variable
$flavour = "strawberry";

// function to change variable value
function change_flavour($name)
{
$flavour = $name;
return $flavour;
}

echo "Before calling the function, the flavour is $flavour.<p>";

// change variable value
change_flavour("blueberry");

echo "After calling the function, the flavour is $flavour.";
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  #2  
Old November 5th, 2003, 07:58 AM
pacanow pacanow is offline
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try this:

Code:
<?php 

// set variable 
$flavour = "strawberry"; 

// function to change variable value 
function change_flavour($name) 
{ 
$flavour = $name; 
return $flavour; 
} 

echo "Before calling the function, the flavour is $flavour.<p>"; 

// change variable value 
change_flavour("blueberry"); 

echo "After calling the function, the flavour is $flavour.";
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  #3  
Old November 5th, 2003, 08:04 AM
pacanow pacanow is offline
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once again -- now, it is the right code

Code:
function change_flavour($name) 
{ 
global $flavour; # add this line!
$flavour = $name; 
return $flavour; 
}
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  #4  
Old November 5th, 2003, 08:59 AM
aberns aberns is offline
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yes, making $flavour global makes it work. Thanks.
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  #5  
Old November 9th, 2003, 03:33 PM
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marron79 marron79 is offline
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Or you could do this...
PHP Code:
<?php

// set variable
$flavour = "strawberry";

// function to change variable value
function change_flavour($name)
{
$flavour = $name;
return $flavour;
}

echo "Before calling the function, the flavour is $flavour.<p>";

// change variable value
// since the function returns a value, capture that value in a new variable
$flav = change_flavour("blueberry");

echo "After calling the function, the flavour is $flav.";
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