[PHP] put code into a function then the code dead,very strange.

[Sharl.Jimh.Tsin]

hi,everyone
        it is a very strange problem,At first,i put my code into the method
inner,it works.see below:

******************* start

    $str = "SQL HERE";
    if (1 == 1) {

        $array = preg_split("~[^\"],~", $body);

        for ($index1 = 0; $index1 < count($motoCols); $index1++) {
            $tmp = "";
            for ($index = 0; $index < count($array); $index++) {
                //取出每个JSON块
                if ($index == count($array) - 1) {
                    $tempStr = $array[$index];
                } else {
                    $tempStr = $array[$index] . "}";
                }
                //转换成JSON 对象
                $json = json_decode($tempStr);

                //过滤掉数据库中的非法字段
                if (!in_array($json->key, $motoCols)) {
                    continue;
                }
                if ($json->key == $motoCols[$index1]) {
                    $tmp = $json->val;
                    if ($index == 10 || $index == 12 || $json->key ==
"DeviceRepairCount") {
                        $tmp .= ",";
                    } else {
                        $tmp = "'" . $tmp . "',";
                    }
                    break;
                } else {
                    if ($json->key == "DeviceRepairCount") {
                        $tmp = "0,";
                    } else {
                        $tmp = "'0',";
                    }
                }
            }
            $str .= $tmp;
        }
        $str = substr($str, 0, -1) . ",LAST_INSERT_ID())";
    }
    $mysqli->query($str);

************************** end

and,when i move this process-code into a separate function,and invoke
it.it failed.see below:

********************** start
function processJSONtoSQL($s,$b) {

    $array = preg_split("~[^\"],~", $b);

    for ($index1 = 0; $index1 < count($motoCols); $index1++) {
        $tmp = "";
        for ($index = 0; $index < count($array); $index++) {
            //取出每个JSON块
            if ($index == count($array) - 1) {
                $tempStr = $array[$index];
            } else {
                $tempStr = $array[$index] . "}";
            }
            //转换成JSON 对象
            $json = json_decode($tempStr);

            //过滤掉数据库中的非法字段
            if (!in_array($json->key, $motoCols)) {
                continue;
            }
            if ($json->key == $motoCols[$index1]) {
                $tmp = $json->val;
                if ($index == 10 || $index == 12 || $json->key ==
"DeviceRepairCount") {
                    $tmp .= ",";
                } else {
                    $tmp = "'" . $tmp . "',";
                }
                break;
            }  else {
                if ($json->key == "DeviceRepairCount") {
                    $tmp = "0,";
                } else {
                    $tmp = "'0',";
                }
            }
        }
        $s .= $tmp;
    }
    return substr($s, 0, -1);
}

invoke part:

$str = "SQL HERE";
$str = processJSONtoSQL($str, $body) . ",LAST_INSERT_ID())";
$mysqli->query($str);

*************************** end

As you can see,it seems to be impossible.Can someone tell me WHY?

-- 
Best regards,
Sharl.Jimh.Tsin (From China **Obviously Taiwan INCLUDED**)

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