If statement 检查多个文本框是否为空，如果不是，则执行PHP

试试下面的

PHP

code

<?
  if ($_POST['username'] == NULL){ //if nothing is entered or only a zero is entered
    echo "Missing a field.";
  }else{
    //rest of code
  }

这对我有用。如果为空，则重定向一个对话框窗体，否则执行作业，该作业就是要执行的insert语句

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您能进一步解释您的问题吗？
<?
if ($_POST['username'] == NULL || 
    $_POST['password'] == NULL || 
    $_POST['email'] == NULL)
{ //if nothing is entered or only a zero is entered
echo "Missing a field.";
}else{
//rest of code
}

if(empty($_POST['memberfullname'])){ 
    header("Location:srgbusinesspartnersmsg.php");
 } else {
    $insert= $con->command($ins);
    header("Location:srgvalidatepartners.php");
}