remove record from results on click - php

Question

I have a question that, I would have thought has definitely been asked before so excuse me if I am phrasing it wrong but I was unable to find it. The question requires a few separate snippets of code to address. I have an application that we use to review the validity of leads submitted to our client from certain forms for billing purposes. What I am wanting, is for when the user presses the button "valid" or "invalid", it assigns the lead the proper status and removes it from the currently displayed table, which would be leads that 'need review'. These leads have a needsreview value of 'null', which is defaulted. The other leads are assigned an appropriate value of 1 or 0 upon the button press.
That all works, the only thing I cannot figure out is how to not redirect the user to restart the search on click. I just want it to remove the record from what is currently displayed. Here is a few pieces of the code, I would greatly appreciate any help. Again, it all works, just in not the most convenient way and I am not sure how to do it the better way, I just need someone more experienced to point me in the right direction.
Here is the buttons code:
<td style="background:#fff;border:none;">
<button style="margin-bottom:2.5%;margin-top:2.5%;background:#2ECC71;border-radius:5px;width:175px;height:30px;border:3px solid #3FC380;color:#fff;font-weight:bold;" onclick="location='admin.php?action=validCustomer&customersId=<?php echo $customers->id?>'">Valid</button>
</td>
<td style="background:#fff;border:none;">
<button style="margin-bottom:2.5%;margin-top:2.5%;background:#2ECC71;border-radius:5px;width:175px;height:30px;border:3px solid #3FC380;color:#fff;font-weight:bold;" onclick="location='admin.php?action=invalidCustomer&customersId=<?php echo $customers->id?>'">Not Valid</button>
</td>
Here is the other relevant code:
function searchIsValid() {
$results['formAction'] = "searchIsValid";
$results['pageTitle'] = "Search By Validation Status";
require (TEMPLATE_PATH . "/admin/searchIsValid.php" );
}
function validCustomer(){
if (!$customers = customers::getById( (int)$_GET['customersId'] ) ){
echo "Error getting customer ID";
}
$results['formAction'] = "validCustomer";
$results['pageTitle'] = "Lead Validated";
$customers->validCustomer($_SESSION['username']);
header( "Location: admin.php?action=searchIsValid" );
}
function invalidCustomer(){
if (!$customers = customers::getById( (int)$_GET['customersId'] ) ){
echo "Error getting customer ID";
}
$results['formAction'] = "invalidCustomer";
$results['pageTitle'] = "Lead Invalidated";
$customers->invalidCustomer($_SESSION['username']);
header( "Location: admin.php?action=searchIsValid" );
}
And finally, the last piece of relevant code, the SQL part:
public function update() {
// Does the customer object have an ID?
if ( is_null( $this->id ) ) trigger_error ( "customers::update(): Attempt to update a customer object that does not have its ID property set.", E_USER_ERROR );
// Update the customer
$conn = new PDO( DB_DSN, DB_USERNAME, DB_PASSWORD );
$sql = "UPDATE leads SET valid=:valid WHERE id = :id";
$st = $conn->prepare ( $sql );
$st->bindValue( ":id", $this->id, PDO::PARAM_INT );
$st->execute();
$conn = null;
}
public function validCustomer($username) {
// Does the customer object have an ID?
if ( is_null( $this->id ) ) trigger_error ( "customers::update(): Attempt to update a customer object that does not have its ID property set.", E_USER_ERROR );
// Update the customer
$conn = new PDO( DB_DSN, DB_USERNAME, DB_PASSWORD );
// if invalid
$sql = "UPDATE leads SET valid=1, reviewedby='$username' WHERE id = :id";
$st = $conn->prepare ( $sql );
$st->bindValue( ":id", $this->id, PDO::PARAM_INT );
$st->execute();
$conn = null;
}
public function invalidCustomer($username) {
// Does the customer object have an ID?
if ( is_null( $this->id ) ) trigger_error ( "customers::update(): Attempt to update a customer object that does not have its ID property set.", E_USER_ERROR );
// Update the customer
$conn = new PDO( DB_DSN, DB_USERNAME, DB_PASSWORD );
// if invalid
$sql = "UPDATE leads SET valid=0, reviewedby='$username' WHERE id = :id";
$st = $conn->prepare ( $sql );
$st->bindValue( ":id", $this->id, PDO::PARAM_INT );
$st->execute();
$conn = null;
}
I think this is all the relevant code but, I probably forgot some so feel free to remind me, and thanks again for taking the time to read my post and offer assistance!