Hi,
I'm not sure I understand why you would use instanceof on $this. Try this code:
<?php
class a1 {
}class a2 extends a1 {
}echo new a1 instanceof a1; // true echo new a2 instanceof a1; // true ?>
instanceof defines whether an object is or descends from a class (like is_a()).
If you want to check whether $this is the Test class or a descendant class, the simplest way I know is
if (get_class($this) == 'Test')
otherwise, you could use reflection
$z = new ReflectionClass($this); if ($z->getName() == 'Test')
but that's a bit more cumbersome.
Greg
Jason Barnett wrote:
It's only a minor nuisance, but in order to use __CLASS__ with instanceof I have to assign __CLASS__ to a variable first. Should I bother submitting a bug report for this? Or am I perhaps missing something...
<?php
class Test { function checkObj2() { //workaround $class = __CLASS__; if ($this instanceof $class) { return TRUE; } else { return FALSE; } }
function checkObj() { // this causes a parsing error // return ($this instanceof __CLASS__); } }
$t = new Test(); echo $t->checkObj2() ? 'TRUE' : 'FALSE'; echo $t->checkObj(); // can't even test it
?>
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