一直在研究所有类似的Q& A,但我现在无法找到解决方案,现在我已经在墙上敲了两天以上。
我正在根据用户输入构建查询,所以我不打算发布所有的mumbo jumbo。
在查询完成并准备好后,请考虑$binds
此类型:key => val
的关联数组以获取绑定值。
这是类函数的一部分(仅显示构建查询后的部分):
$stmt = $this->pdo->prepare($stmt);
foreach($binds as $k => $v){
$col = explode('.',substr($k,1));//because all keys start with ':' and some end with '.key'
$col = $col[0];
if($col == 'year'){
$col = 'model_year';
}
$stmt->bindValue($k,$v,$this->tblInfo->pdo_param($col));//tblInfo is a class
//holding an array with column names and types for the table i'm working with
//and a function that returns PDO::PARAM_ type based on the column type
}
if($stmt->execute()){
$res = $stmt->fetchAll(PDO::FETCH_ASSOC);
}
return array('binds' => $binds,$stmt,'err' => $stmt->errorInfo(),'result' => $res);
这是函数的json_encoded
输出:
{
"binds": {
":make": "audi",
":model": "a4",
":year.1": "2013",
":price.1": "9990",
":gearbox.0": "auto",
":fuel.0": "diesel",
":mileage.0": "0",
":mileage.1": "350000"
},
"0": {
"queryString": "SELECT COUNT(active) AS main FROM ads_auto WHERE active=true
AND has_photo=true AND make=:make AND model=:model AND model_year <= :year.1 AND
price <= :price.1 AND gearbox=:gearbox.0 AND fuel=:fuel.0 AND mileage BETWEEN
:mileage.0 AND :mileage.1"
},
"err": [
"HY093",
null,
null
],
"result": null
}
AND debugDumpParams()
:
SQL: [245] SELECT COUNT(active) AS main FROM ads_auto WHERE active=true AND
has_photo=true AND make=:make AND model=:model AND model_year <= :year.1 AND
price <= :price.1 AND gearbox=:gearbox.0 AND fuel=:fuel.0 AND mileage BETWEEN
:mileage.0 AND :mileage.1
Params: 8
Key: Name: [5] :make paramno=-1 name=[5] ":make" is_param=1 param_type=2
Key: Name: [6] :model paramno=-1 name=[6] ":model" is_param=1 param_type=2
Key: Name: [7] :year.1 paramno=-1 name=[7] ":year.1" is_param=1 param_type=1
Key: Name: [8] :price.1 paramno=-1 name=[8] ":price.1" is_param=1 param_type=1
Key: Name: [10] :gearbox.0 paramno=-1 name=[10] ":gearbox.0" is_param=1 param_type=2
Key: Name: [7] :fuel.0 paramno=-1 name=[7] ":fuel.0" is_param=1 param_type=2
Key: Name: [10] :mileage.0 paramno=-1 name=[10] ":mileage.0" is_param=1 param_type=1
Key: Name: [10] :mileage.1 paramno=-1 name=[10] ":mileage.1" is_param=1 param_type=1
显然$stmt->execute()
对FALSE
进行了劝告,因此无法获取。
$binds
数组包含$stmt
需要绑定的内容。
我没有使用任何引号。
我读过有关COUNT()和PDO的问题,所以我尝试了SELECT id
而不是SELECT COUNT
,但由于$stmt->execute()
是FALSE
,所以没有区别。< / p>
为什么我为什么我得到了HY093?我错过了什么?
将PHP 5.5和MySQL 5.5与InnoDB一起使用。
答案 0 :(得分:0)
所以,多亏了@ tadman的建议,我挖掘了PDO的源代码,看来这个问题已经取代了占位符名称。
根据Parser源代码:
BINDCHR = [:] [a-zA-Z0-9 _] +;
占位符名称可以是字母数字+下划线,因此添加&#39;。&#39; (点)是否定号。
感谢指针。现在一切都好。