Php datetime变量上的Mysql错误

我不是一个天生的程序员，我通常可以摸索通过使用这个网站，但这个查询错误让我难住了。查询的形式是将数据导出到CSV文件。“fromdate”和“todate”是从datepicker jquery widgit中提取的，修改为dateFormat:yy-mm-dd++00:00:00和dateFormat:yy-mm-dd++23:59:59

我将1个派生表与2个其他表连接起来。当我用变量替换值时，查询在mysql中运行得很好，但似乎在抱怨datetime，我尝试了多种格式化方法，但都没有用。我尝试了使用strotime和不使用strotime的查询

检查与您的MariaDB服务器版本对应的手册，以了解在'00:00:00附近使用的正确语法，并尝试使用calldate

 $sql1 = "select t1.npanxx, t1.state, t2.bnumber, t2.asr, t2.total, t2.carid, t2.carjur, t2.date, t3.vendorid FROM sncodes as t1 INNER JOIN (select bnumber, (select sum(carduration>0) / sum(carduration)*100) as ASR, (select count(carduration)) as total, carid, carjur, date FROM svcdrs group by bnumber,carid,carjur) as t2 on t1.npanxx = t2.bnumber AND calldate >=STR_TO_DATE('$fromdate','%Y-%m-%d %H:%i:%s') AND calldate <= STR_TO_DATE('$todate','%Y-%m-%d %H:%i:%s') INNER JOIN (select vendorid from svvendors) as t3 ON t2.carid = t3.vendorid AND vendorid=('$ids') order by npanxx";  

或

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在MariaDB中，“日期”字段格式没有hh:mm:ss部分。所以Date只是一个日期“yyyy-mm-dd”。“calldate”很可能属于这种类型。因此，在比较中，您可能不使用“hh:mm:ss”，您应该撤消小部件修改以“yyyy-mm-dd”格式返回日期，然后重写代码，使sql日期范围比较看起来像calldate>='$fromdate'和calldate<date\u添加'$todate'，间隔1天。下一个非常重要的注意事项-在sql查询中，如果没有转义或准备好的语句，就不要使用表单值。否则，您的代码容易受到SQL注入的攻击，理论上有人可以通过'；删除数据库客户；-'在$fromdate字段date中，然后所有数据都消失。

尝试$sql1='选择t1.npanxx、t1.state、t2.bnum。和calldate>=STR_TO_DATE'.$fromdate'.…calldate尝试删除括号并添加引号，如。。。calldate>=“.$fromdate.”……这些是日期列还是日期时间列？如果它们是日期列，这将不起作用，因为不支持时间部分。当我删除strotime行并直接从$\u POST调用变量时，STR_TO_DATE起作用。否则默认为1970-01-01。谢谢

 $sql1 = "select t1.npanxx, t1.state, t2.bnumber, t2.asr, t2.total, t2.carid, t2.carjur, t2.date, t3.vendorid FROM sncodes as t1 INNER JOIN (select bnumber, (select sum(carduration>0) / sum(carduration)*100) as ASR, (select count(carduration)) as total, carid, carjur, date FROM svcdrs group by bnumber,carid,carjur) as t2 on t1.npanxx = t2.bnumber AND calldate >=STR_TO_DATE('$fromdate','%Y-%m-%d %H:%i:%s') AND calldate <= STR_TO_DATE('$todate','%Y-%m-%d %H:%i:%s') INNER JOIN (select vendorid from svvendors) as t3 ON t2.carid = t3.vendorid AND vendorid=('$ids') order by npanxx";  

 $sql1 = "select t1.npanxx, t1.state, t2.bnumber, t2.asr, t2.total, t2.carid, t2.carjur, t2.date, t3.vendorid FROM sncodes as t1 INNER JOIN (select bnumber, (select sum(carduration>0) / sum(carduration)*100) as ASR, (select count(carduration)) as total, carid, carjur, date FROM svcdrs group by bnumber,carid,carjur) as t2 on t1.npanxx = t2.bnumber AND calldate >='$fromdate' AND calldate <= '$todate' INNER JOIN (select vendorid from svvendors) as t3 ON t2.carid = t3.vendorid AND vendorid=('$ids') order by npanxx";