Comparison of the post not producing desired do not result

During my form validation before update of database, I check if the 'hpropid' field is empty and echo a message appropriate (this works), then check if the field is between 3-15 characters (this also works), I finally check that the displayed value new is different from the original value by comparing the $_POST ['vpr'] to $_POST ['hpropid'] This is where I'm having problems, mainly if the values are the same I Don t want to search on the database to check if all records have the same reference number, but if the values are different I don't want she runs research and echo $error ['errprop'] error message.

When the values are the same, and I know that the values are the same that I placed the code to echo values, the search on the database is always run when it shouldn´t if my comparison works which creates the error which is incorrect. It seems that the line that causes my problem is: if ($_POST ["RVP"]! = $_POST ['hpropid']) {-fact echo the value of vpr is C23 and the value of hpropid is C23, so why if they are not equal the meaasge research and database error still gets executed?}

I pasted the full piece of code validation below:

Any help with this will be appreciated, thanks in advance.

If created empty field the error message at the echo in the body
If (empty($_POST['hpropid'])) {}
$error ['errpropid'] = 'Please enter the property reference. " }

Otherwise, if the field not between 3 to 15 characters create error message to echo in the body
else if (! empty($_POST['hpropid'])) {/ / check propid}
$_POST ['hpropid'] = trim($_POST['hpropid']);
$propid = $_POST ['hpropid'];
If {(strlen ($propid) < 3)
$error ['errpropid'] = 'Please enter a property reference that contains 3 to 15 characters';
}
$_POST ['hpropid'] = trim($_POST['hpropid']);
$propid = $_POST ['hpropid'];
If {(strlen ($propid) > 15)
$error ['errpropid'] = 'Please enter a property reference that contains 3 to 15 characters';
}
}

If the original value and the new value differ run the check on the database and the error message created

If the values are the same Don t run the serach on the database that nothing has been changed in this area
If (isset($_POST['vpr'])) {}
{If ($_POST ["RVP"]! = {$_POST ['hpropid']})}
echo POST vpr is: '. $_POST ["RVP"]. ' < br / > ';
echo hpropid POST is: '. $_POST ['hpropid']. ' < br / > ';

$LoginRS__query = sprintf ("SELECT hpropid FROM holidayletstable WHERE hpropid = %s", GetSQLValueString ($propid, "text") ");
@mysql_select_db ($database_connAdd, $connAdd);
$LoginRS = mysql_query ($LoginRS__query, $connAdd) or die (mysql_error ());
$loginFoundUser = mysql_num_rows ($LoginRS);

If there is a line in the database, the propid was found - can not match the requested reference
{if ($loginFoundUser)}
$error ["errprop"] = "$propid is already in use. Please enter a different property reference. « ;
}
}
}
}

tessimon wrote:

Why if they are not equal the meaasge research database and error still become executed?

Don't know. It may be because you have applied trim() to one, but not the other. Your code is rather repetitive and contains some errors (maybe you didn't copy it exactly in there). Try this:

$error = array();
// if field empty created error message to echo in body
if (empty($_POST['hpropid'])) {
  $error['errpropid'] = 'Please enter the property reference';
} else {
  $_POST['hpropid'] = trim($_POST['hpropid']);
  $len = strlen($_POST['hpropid']);
  if ($len < 3 || $len > 15) {
    $error['errpropid'] = 'Please enter a property reference that contains 3 - 15 characters';
  }
}

if (!$error && isset($_POST['vpr'])) {
  $_POST['vpr'] = trim($_POST['vpr']);
  // if original value and new value are different run check
  // on the database and created error message

  // if values are the same don´t run the serach on the database
  // as nothing has been changed in this field
  if ($_POST['vpr'] != $_POST['hpropid']) {
    echo 'POST vpr is: ' . $_POST['vpr'] . '
';
    echo 'POST hpropid is: ' . $_POST['hpropid'] . '
';

    $LoginRS__query = sprintf("SELECT hpropid FROM holidayletstable
       WHERE hpropid=%s", GetSQLValueString($propid, "text"));
    mysql_select_db($database_connAdd, $connAdd);
    $LoginRS=mysql_query($LoginRS__query, $connAdd) or die(mysql_error());
    $loginFoundUser = mysql_num_rows($LoginRS);

    //if there is a row in the database, the propid was found
    // - can not add the requested reference
    if($loginFoundUser) {
     $error['errprop'] = "$propid is already in use.
        Please enter a different property reference.";
    }
  }
}

Tags: Dreamweaver

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