Re: runtime access to static variable

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Jack Bates wrote:
How do I access a static variable when I do not know the name of the
class until runtime?

I have the following example PHP:

ket% cat test.php <?php

class Test
{
  public static
    $STEPS = array(
      'foo',
      'bar');
}

$className = 'Test';

var_dump($className::$STEPS);
ket%
Unfortunately when I run it I get:

ket% php test.php
Parse error: syntax error, unexpected T_PAAMAYIM_NEKUDOTAYIM
in /home/jablko/trash/test.php on line 13
ket%
I can call a static function using call_user_func(array($className,
'functionName')), and I can access a class constant using
constant($className.'::CONSTANT_NAME'). How do I access a static
variable?


this does beg the question why don't you know the classname at runtime.. seems to be a slight design flaw and may make sense for you to post the full problem (you must have chosen to implement this for a reason..)

if you really really must do this, you'd be best off to have a look at reflection..

<?php

class TestClass {
	
	public static $STEPS = array( 'foo' , 'bar' );
	
}

$testClass = new TestClass;

$rTestClass = new ReflectionClass( get_class($testClass) );

print_r( $rTestClass->getStaticPropertyValue('STEPS') );

?>

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