Jump to content

Recommended Posts

I have 3 variables:

 

$FirstName=$_POST['FirstName'];

$LastName=$_POST['LastName'];

$CompanyName=$_POST['CompanyName'];

 

I need some logic to say concatenate FirstName, LastName and CompanyName if all are NOT NULL, if one is NULL don't include the variable in the concatenation.

 

Example:

FirstName=John

LastName=Doe

CompanyName=NULL

 

$fields=$FirstName, $LastName

$values=FirstName, LastName

 

I want these variables to be used for inserting data into a table, but only the data that is NOT NULL.

 

Any ideas?

Link to comment
https://forums.phpfreaks.com/topic/102955-concatenating-3-variables/
Share on other sites

Fairly Simple:

$fullString = null;

if(isset($_POST['Firstname']) && !empty($_POST['Firstname']))
{
    $fullString .= $_POST['Firstname'] . ' ';
}

if(isset($_POST['Lastname']) && !empty($_POST['Lastname']))
{
    $fullString .= $_POST['Lastname'] . ' ';
}

if(isset($_POST['CompanyName']) && !empty($_POST['CompanyName']))
{
    $fullString .= $_POST['CompanyName'];
}

echo $fullString;

 

You can try something like this:

 

foreach (array('Firstname','LastName','CompanyName') as $field)
{
  if ($_POST[$field])
  {
     $field_name[] = $field;
     $field_value[] = "'{$_POST[$field]}'";
  }
}
$fields  = join(",", $field_name);
$values = join(",", $field_value);
$sql = "INSERT INTO table_name ($fields) VALUES($values)";

 

 

This thread is more than a year old. Please don't revive it unless you have something important to add.

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.