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<?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); ?>
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.31, 8.2.0 - 8.2.27, 8.3.0 - 8.3.15, 8.4.1 - 8.4.2
trait: interface: 1 using: 1 Fatal error: Uncaught Error: Undefined constant "tSB_FormFieldObject" in /in/6at18:15 Stack trace: #0 /in/6at18(35): test(Object(SB_FormFieldObject)) #1 {main} thrown in /in/6at18 on line 15
Process exited with code 255.
Output for 7.4.0 - 7.4.33
trait: interface: 1 using: 1 Warning: Use of undefined constant tSB_FormFieldObject - assumed 'tSB_FormFieldObject' (this will throw an Error in a future version of PHP) in /in/6at18 on line 15 Fatal error: Uncaught Error: Object of class SB_FormFieldObject could not be converted to string in /in/6at18:21 Stack trace: #0 /in/6at18(15): is_instance_of(Object(SB_FormFieldObject), 'tSB_FormFieldOb...') #1 /in/6at18(35): test(Object(SB_FormFieldObject)) #2 {main} thrown in /in/6at18 on line 21
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
trait: interface: 1 using: 1 Warning: Use of undefined constant tSB_FormFieldObject - assumed 'tSB_FormFieldObject' (this will throw an Error in a future version of PHP) in /in/6at18 on line 15 Recoverable fatal error: Object of class SB_FormFieldObject could not be converted to string in /in/6at18 on line 21
Process exited with code 255.
Output for 7.1.0 - 7.1.33
trait: interface: 1 using: 1 Notice: Use of undefined constant tSB_FormFieldObject - assumed 'tSB_FormFieldObject' in /in/6at18 on line 15 Recoverable fatal error: Object of class SB_FormFieldObject could not be converted to string in /in/6at18 on line 21
Process exited with code 255.
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
trait: interface: 1 using: 1 Notice: Use of undefined constant tSB_FormFieldObject - assumed 'tSB_FormFieldObject' in /in/6at18 on line 15 Catchable fatal error: Object of class SB_FormFieldObject could not be converted to string in /in/6at18 on line 21
Process exited with code 255.
Output for 5.2.3 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected T_STRING in /in/6at18 on line 2
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.2
<br /> <b>Parse error</b>: syntax error, unexpected T_STRING in <b>/in/6at18</b> on line <b>2</b><br />
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
<br /> <b>Parse error</b>: parse error, unexpected T_STRING in <b>/in/6at18</b> on line <b>2</b><br />
Process exited with code 255.
Output for 4.3.2 - 4.3.4
<br /> <b>Parse error</b>: parse error in <b>/in/6at18</b> on line <b>2</b><br />
Process exited with code 255.
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