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变量无法赋值是怎么回事?

$Starttime=$_get["starttime"];
$Endtime=$_get["endtime"];
$Time_temp="and createdate>='$Starttime' and createdate<='$Endtime'";

$starttime,$endtime都有值,请问
echo $time_temp输入为:
and createdate>='' and createdate<=''
是怎么回事?


回复讨论(解决方案)

$Starttime=$_ GET["starttime"];
$Endtime=$_GET["endtime"];

注意大小写

$Starttime=$_ GET["starttime"];
$Endtime=$_ GET["endtime"];
$ Time_temp="and createdate>='$Starttime' and createdate<='$Endtime'";

$starttime,$endtime都有值,请问
echo $ time_temp输入为:
and createdate>='' and createdate<=''
是怎么回事?

$_GET用大写

换成大写就行了

去掉引号!!!