- class_implements: documentation ( source)
- is_subclass_of: documentation ( source)
- in_array: documentation ( source)
<?php
trait tSB_FormFieldObject {
}
interface iSB_FormFieldObject {
}
class SB_FormFieldObject
implements iSB_FormFieldObject {
use tSB_FormFieldObject;
public $Test2 = "aa";
}
function test($a=null) {
echo "trait: " .($a instanceof tSB_FormFieldObject) . PHP_EOL;
echo "interface: " .($a instanceof iSB_FormFieldObject) . PHP_EOL;
echo "using: " .(is_using($a, "tSB_FormFieldObject")) . PHP_EOL;
echo "instanceof: " .(is_instance_of($a, tSB_FormFieldObject)) . PHP_EOL;
}
function is_using($class, $trait) {
return in_array($trait, (new ReflectionClass($class))->getTraitNames());
}
function is_instance_of($sub, $super) {
$sub = (string)$sub;
$super = is_object($super) ? get_class($super) : (string)$super;
switch(true) {
case $sub === $super; // well ... conformity
case is_subclass_of($sub, $super):
case in_array($super, class_implements($sub)):
return true;
default:
return false;
}
}
$a = new SB_FormFieldObject();
test($a);
?>