PHP的神秘数字不安全

Question

我有一个写JSON的PHP脚本。它在所有情况下都非常有效，但仅在一种情况下有效：如果我从较新的Android（相对于较旧的Android，iOS或台式机）不安全地调用它，则会在输出中不规则地插入两位十六进制数字：

**40** { "query":"SELECT * FROM mySQL_table ORDER BY `Time` ASC ", 
        **16** "success":5, 
        "data":[ **a8** { "Player":"Jay", 
                          "Crime1":"", 
                          "Crime2":"", 
                          "Crime3":"", 
                          "Partners1":"", 
                          "Partners2":"", 
                          "Partners3":"", 
                          "Suspects":"", 
                          "Time":"2018-10-30 13:17:04" 4 
                        }, 
                **55** { "Player":"Moto", 
                         "Crime1":"", 
                         "Crime2":"", 
                         "Crime3":"", 
                         "Partners1":"", 
                  **35** "Partners2":"", 
                         "Partners3":"", 
                         "Suspects":"", 
                  **23** "Time":"2018-10-30 13:17:38" 
                        }, 
                 **33** { "Player":"IOS", 
                         "Crime1":"", 
                         "Crime2":"", 
                  **33** "Crime3":"", 
                         "Partners1":"", 
                         "Partners2":"", 
                  **23** "Partners3":"", 
                         "Suspects":"", 
                  **23** "Time":"2018-10-30 13:18:05" 
                        }, 
                **7c** { "Player":"Old Jay", 
                          "Crime1":"", 
                          "Crime2":"", 
                          "Crime3":"", 
                          "Partners1":"", 
                          "Partners2":"", 
                          "Partners3":"", 
                    **34** "Suspects":"", 
                          "Time":"2018-10-30 13:18:24" 
                        }, 
                 **5b** { "Player":"Old Brenda", 
                          "Crime1":"", 
                          "Crime2":"", 
                          "Crime3":"", 
                          "Partners1":"", 
                   **35** "Partners2":"", 
                          "Partners3":"", 
                          "Suspects":"", 
                    **25** "Time":"2018-10-30 13:18:34" 
                        } 
                ] 
    } **0**

以下是生成该输出的PHP代码：

echo "\"data\":[\n";    
$i=0;
while ($i < $num) {

    $Player=mysqli_result($result,$i,"Player");
    $Crime1=mysqli_result($result,$i,"Crime1");
    $Crime2=mysqli_result($result,$i,"Crime2");
    $Crime3=mysqli_result($result,$i,"Crime3");
    $Partners1=mysqli_result($result,$i,"Partners1");
    $Partners2=mysqli_result($result,$i,"Partners2");
    $Partners3=mysqli_result($result,$i,"Partners3");
    $Suspects=mysqli_result($result,$i,"Suspects");
    $Time=mysqli_result($result,$i,"Time");

    echo "  {\n";
    echo "      \"Player\":\"$Player\",\n";
    echo "      \"Crime1\":\"$Crime1\",\n";
    echo "      \"Crime2\":\"$Crime2\",\n";
    echo "      \"Crime3\":\"$Crime3\",\n";
    echo "      \"Partners1\":\"$Partners1\",\n";
    echo "      \"Partners2\":\"$Partners2\",\n";
    echo "      \"Partners3\":\"$Partners3\",\n";
    echo "      \"Suspects\":\"$Suspects\",\n";
    echo "      \"Time\":\"$Time\"\n";
    if ($i == $num-1)
        echo "  }\n";
    else 
        echo "  },\n";

    $i++;
}
echo "]\n}";

调用它也可以安全地解决问题，但是我仍然对这种情况的发生感到惊讶。数字甚至不会在相同的语句之间插入，也不会以相等的间隔插入（除非总是在每个循环的第一个回声之前）。

谢谢。