<?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($a, "tSB_FormFieldObject")) . PHP_EOL;
echo "instanceof: " .(is_instance_of(get_class($a), "SB_FormFieldObject")) . PHP_EOL;
}
function is_using($class, $trait) {
return in_array($trait, (new ReflectionClass($class))->getTraitNames());
}
function is_instance_of($sub, $super) {
$sub = (string)$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);
?>
- Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.36, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
- trait:
interface: 1
using: 1
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/0u3Wv 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/0u3Wv on line 2
Process exited with code 255. - Output for 4.3.2 - 4.3.4
- Parse error: parse error in /in/0u3Wv on line 2
Process exited with code 255.
preferences:
274.51 ms | 401 KiB | 348 Q