Question

我已经搜索过这个问题，但找不到与此类似的内容。这是我的代码：

$serial = "19002817";
$start = "1443597360";
$end = "1443600000";

这是我的MySQL查询：

SELECT * FROM trips WHERE serial = '$serial' AND start_date >= '$start' AND end_date <= '$end';

然后在PHP中我收到以下错误：

查询错误，您的SQL语法中有错误;检查与您的MySQL服务器版本对应的手册，以便在''1443597360'AND_date＆lt;附近使用正确的语法。第1行'1443600000'

现在我注意到它与>和<符号有关。如果我删除它们，那么一切都很完美。但我以前从未遇到过这个问题。

以下是我的完整代码

<?php
    set_time_limit(0);
    require_once("includes/DBC.php");

    function distance($lat1, $lon1, $lat2, $lon2) 
    {
        $theta = $lon1 - $lon2;
        $dist = sin(deg2rad($lat1)) * sin(deg2rad($lat2)) +  cos(deg2rad($lat1)) * cos(deg2rad($lat2)) * cos(deg2rad($theta));
        $dist = acos($dist);
        $dist = rad2deg($dist);
        $miles = $dist * 60 * 1.1515;

        return round($miles * 1.609344, 2);
    }

    $serial = "19002817";
    $start = "1443597360";
    $end = "1443600000";

    //Have tried
    //$start = 1443597360;
    //$end = 1443600000;

    //Have tried
    //$start = (int) "1443597360";
    //$end = (int) "1443600000";

    $Tdist = 0;

    $trips = DBC::dbsql("SELECT * FROM trips WHERE serial = $serial AND start_date >= $start AND end_date <= $end;") or die(DBC::printErrors());
    //Have tried
    //$trips = DBC::dbsql("SELECT * FROM trips WHERE serial = ".$serial." AND start_date >= ".$start." AND end_date <= ".$end.";") or die(DBC::printErrors());

    while($getTrips = DBC::dbfetch($trips))
    {
        $start_date = $getTripss['start_date'];
        $end_date = $getTripss['end_date'];
        $cor = DBC::dbsql("SELECT lat, lng FROM z_$serial WHERE datelogged BETWEEN '$start_date' AND '$end_date';");
        while($getCor = DBC::dbfetch($cor))
        {
            $cor_lat = $getCor['lat'];
            $cor_lng = $getCor['lng'];

            if(!empty($first_lat) && !empty($first_lng))
            {
                $dist = distance($lat, $lng, $first_lat, $first_lng);
                $Tdist += $dist;
            }
            $first_lat = $cor_lat;
            $first_lng = $cor_lng;
        }
        print "Distance = $Tdist<br />";
    }
?>

MySQL查询在PHPMyAdmin中运行，但在PHP中出错

0 个答案: