csu3_am335x/EVSE/GPL/php-8.1.12/ext/json/tests/bug61978.phpt

--TEST--
Bug #61978 (Object recursion not detected for classes that implement JsonSerializable)
--FILE--
<?php

class JsonTest1 {
    public $test;
    public $me;
    public function __construct() {
        $this->test = '123';
        $this->me  = $this;
    }
}

class JsonTest2 implements JsonSerializable {
    public $test;
    public function __construct() {
        $this->test = '123';
    }
    public function jsonSerialize(): mixed {
        return array(
            'test' => $this->test,
            'me'   => $this
        );
    }
}


$obj1 = new JsonTest1();
var_dump(json_encode($obj1, JSON_PARTIAL_OUTPUT_ON_ERROR));

echo "==\n";

$obj2 = new JsonTest2();
var_dump(json_encode($obj2, JSON_PARTIAL_OUTPUT_ON_ERROR));

?>
--EXPECT--
string(24) "{"test":"123","me":null}"
==
string(24) "{"test":"123","me":null}"