@ 2013-11-21T11:08:26Z <?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, SB_FormFieldObject)) . PHP_EOL;
}
function is_using($class, $trait) {
return in_array($trait, (new ReflectionClass($class))->getTraitNames());
}
function is_instance_of($sub, $super) {
$sub = is_object($sub) ? get_class($sub) : (string)$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);
?>
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Output for 8.0.0 - 8.0.30 , 8.1.0 - 8.1.27 , 8.2.0 - 8.2.17 , 8.3.0 - 8.3.4 trait:
interface: 1
using: 1
Fatal error: Uncaught Error: Undefined constant "SB_FormFieldObject" in /in/2BNrX:15
Stack trace:
#0 /in/2BNrX(35): test(Object(SB_FormFieldObject))
#1 {main}
thrown in /in/2BNrX on line 15
Process exited with code 255 . Output for 7.2.0 - 7.2.33 , 7.3.0 - 7.3.33 , 7.4.0 - 7.4.33 trait:
interface: 1
using: 1
Warning: Use of undefined constant SB_FormFieldObject - assumed 'SB_FormFieldObject' (this will throw an Error in a future version of PHP) in /in/2BNrX on line 15
instanceof: 1
Output for 5.4.0 - 5.4.45 , 5.5.0 - 5.5.38 , 5.6.0 - 5.6.40 , 7.0.0 - 7.0.33 , 7.1.0 - 7.1.33 trait:
interface: 1
using: 1
Notice: Use of undefined constant SB_FormFieldObject - assumed 'SB_FormFieldObject' in /in/2BNrX on line 15
instanceof: 1
Output for 4.4.2 - 4.4.9 , 5.1.0 - 5.1.6 , 5.2.0 - 5.2.17 , 5.3.0 - 5.3.29 Parse error: syntax error, unexpected T_STRING in /in/2BNrX on line 2
Process exited with code 255 . Output for 4.3.0 - 4.3.1 , 4.3.5 - 4.3.11 , 4.4.0 - 4.4.1 , 5.0.0 - 5.0.5 Parse error: parse error, unexpected T_STRING in /in/2BNrX on line 2
Process exited with code 255 . Output for 4.3.2 - 4.3.4 Parse error: parse error in /in/2BNrX on line 2
Process exited with code 255 . preferences:dark mode live preview
281.81 ms | 401 KiB | 455 Q