[SOLVED] Declaring a function

[Azu]

function dumbyfunction($test_var="lol"){die($test_var);}

Works

 

But

function dumbyfunction($test_var="getenv('REMOTE_ADDR')"){die($test_var);}

function dumbyfunction($test_var=getenv('REMOTE_ADDR')){die($test_var);}

function dumbyfunction($test_var="$GLOBALS[MyIp]"){die($test_var);}

function dumbyfunction($test_var='$GLOBALS[MyIp]'){die($test_var);}

function dumbyfunction($test_var='getenv('REMOTE_ADDR')'){die($test_var);}

all crash and burn. Please tell me why this happens and how I can fix it.

[trq]

As stated in the manual.

 

The default value must be a constant expression, not (for example) a variable, a class member or a function call.

 

[obsidian]

As stated in the manual.

 

The default value must be a constant expression, not (for example) a variable, a class member or a function call.

 

In other words, you need to default your value to NULL or something else recognizable, and if the default value comes through, assign the function call within your declared function:

<?php
function dummyfunction($test_var = '') {
  if (empty($test_var)) $test_var = getenv('REMOTE_ADDR');
  die($test_var);
}
?>

[Azu]

Okay thanks, it is working now and no errors =D