Online PHP editor | output for cFpdR

@ 2017-09-11T13:53:05Z

<?php
class A { }
$ref = new ReflectionClass('A');
var_dump(method_exists($ref, 'getDocComment')); //bool(true)
var_dump($ref->getDocComment()); //bool(false)

// serialize only the class name    
$refClass = unserialize(serialize($ref));
try {
    $refClass->getDocComment();
}
catch (Error $e) {
    $recoveredRef = new ReflectionClass($refClass->getName());
    var_dump($recoveredRef);
    var_dump($recoveredRef->getDocComment()); // works correctly
    echo "Malformed Reflection object, but recovered: ".$e->getMessage();
}

Output for 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7: bool(true) bool(false) Fatal error: Uncaught Exception: Serialization of 'ReflectionClass' is not allowed in /in/cFpdR:8 Stack trace: #0 /in/cFpdR(8): serialize(Object(ReflectionClass)) #1 {main} thrown in /in/cFpdR on line 8
Process exited with code 255.
Output for 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33: bool(true) bool(false) object(ReflectionClass)#4 (1) { ["name"]=> string(1) "A" } bool(false) Malformed Reflection object, but recovered: Internal error: Failed to retrieve the reflection object
Output for 7.0.0 - 7.0.23: bool(true) bool(false) Fatal error: ReflectionClass::getDocComment(): Internal error: Failed to retrieve the reflection object in /in/cFpdR on line 10
Process exited with code 255.

preferences:dark modelive preview