Test Json Bug

test_json_bug.php

<?php

/**
 * lvcha.
 *
 * Author: wudi <[email protected]>
 * Date: 2015/11/19
 */
class Person implements JsonSerializable
{

    protected $name = 'eagle';
    protected $detail = '
                                    详细内容232432
                            <div class="detail-mini-row"><img src="/upload/39/8e/56318e318bf39.jpg"><div class="detail-mini-edit fn-clear" style="display: none;"><div class="detail-mini-edit-left"><button type="button" class="btn btn-up btn-primary">上移</button><button type="button" class="btn btn-down btn-primary">下移</button></div><div class="detail-mini-edit-right"><button type="button" class="btn btn-del btn-primary"><span class="glyphicon glyphicon-remove" aria-hidden="true"></span></button></div></div></div><div class="detail-mini-row"><div class="detail-mini-txt">测试文字手打点撒
撒旦撒旦</div><div class="detail-mini-edit fn-clear" style="display: none;"><div class="detail-mini-edit-left"><button type="button" class="btn btn-up btn-primary">上移</button><button type="button" class="btn btn-down btn-primary">下移</button></div><div class="detail-mini-edit-right"><button type="button" class="btn btn-del btn-primary"><span class="glyphicon glyphicon-remove" aria-hidden="true"></span></button></div></div></div>';


    public function jsonSerialize()
    {
        return $this->toArray();
    }


    public function toArray()
    {
        /**
         * The attribute detail is invalid json string.
         * Trigger json error, But no fatal error just return NULL.
         */
        $this->detail = json_decode($this->detail, true);

        /**
         * valid array return, only detail is NULL.
         */
        $arr = [
            'name'   => $this->name,
            'detail' => $this->detail,
        ];

        echo "\nAfter json_decode() return valid array: \n";
        var_dump($arr);

        return $arr;
    }

}


$person = new Person();

/**
 * Why return false ?????
 */
$json = json_encode($person);

echo PHP_EOL . 'json_encode() return:' . PHP_EOL;
var_dump($json);


echo PHP_EOL . json_last_error_msg() . ':' . json_last_error() . PHP_EOL;