我正在尝试创建一个存储过程，用户可以在前端选择如何对从mysql中提取的数据进行分组。但是由于某些原因，当我尝试执行查询时，MySql返回错误：
查询错误（exportEntries）：未知列＆＃39; NumeroProducto＆＃39;在＆＃39;字段列表＆＃39;
我通过使用一些错误处理代码（$ mysqli-＆gt;错误）来解决此错误。
这是我用来在PHP中调用存储过程的代码：
xargs这就是我的MySql存储过程的样子：
sed function checkDistance(lat1,lon1,lat2,lon2) {
var R = 6371; // Radius of the earth in km
var dLat = deg2rad(lat2-lat1); // deg2rad below
var dLon = deg2rad(lon2-lon1);
var a =
Math.sin(dLat/2) * Math.sin(dLat/2) +
Math.cos(deg2rad(lat1)) * Math.cos(deg2rad(lat2)) *
Math.sin(dLon/2) * Math.sin(dLon/2)
;
var c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1-a));
var d = R * c; // Distance in km
return d;
}
function deg2rad(deg) {
return deg * (Math.PI/180)
}
var fixedlat = 51.714236;
var fixedlon = 50.710236;
var miles = 20;
var distanceLimit = miles * 1.6; //(km)
var data = [
{
"name": "Paul Brooks",
"location": {
"lat": 51.714236,
"lon": 50.710236
}
},
{
"name": "Jason Orange",
"location": {
"lat": 52.030778298795856,
"lon": 0.364888567109396
}
},
{
"name": "Mark Way",
"location": {
"lat": 53.41899784623413,
"lon": -1.9138465628943413
}
},
{
"name": "Ben Bon",
"location": {
"lat": 52.30976192959104,
"lon": -0.4014670363034498
}
},
{
"name": "Chris Col",
"location": {
"lat": 53.45301856182801,
"lon": -1.8765834388107732
}
},
{
"name": "Von Van",
"location": {
"lat": 53.82771812914788,
"lon": -0.7563793003592991
}
}
];
for(var i = 0;i < data.length;i++){
var result = checkDistance(fixedlat,fixedlon,data[i].location.lat,data[i].location.lon);
if(result <= distanceLimit){
var resultList = document.getElementById('resultList');
resultList.append(data[i].name + ', ');
}
}中包含的值为<div id="resultList"></div>，我也尝试使用该字段的实际值：$client = "CLT_6840";
$planta = $_GET['planta'];
$agrupacion = $_GET['agrupadoPor'];
$qry = "CALL exportEntradas('$cliente','$planta', $agrupacion)";
$stmt = $db->prepare($qry) or die('Prepare error (exportEntries): ' . $db->error);
$stmt->bind_param('sss',
$cliente,
$planta,
$agrupacion
);
$stmt->execute() or die('Execute error (entradas_generales): ' . $db->error);
正如您所看到的，字段名称确实存在。知道为什么会发生这种情况..而且......我怎么能纠正它？