Question

      If($txtLastName != "") $txtAcceptanceDate1 = "" && $txtAcceptanceDate2 = ""

这是我在php中的代码...

我不是真正的专家，但我有一些知识分子

如果$ txtLastName不为空，我只想让$ txtAcceptanceDate1和$ txtAcceptanceDate2上的输入变为空

Answer 1

这样做

if(!empty($txtLastName))
{
$txtAcceptanceDate1="";
$txtAcceptanceDate2 ="";
}

Answer 2

试试这个

if( trim($txtLastName) != "") {
    $txtAcceptanceDate1 = "";
    $txtAcceptanceDate2 = "";
}

trim是一个清除所有空格的php函数

Answer 3

If(!empty($txtLastName)) {
  $txtAcceptanceDate1 = "";
  $txtAcceptanceDate2 = "";
}