Cordova and php - compare two values in different tables - php

Question

I have a webapplication where I push data to a table (User_Info) which includes a random generated token and Sur- and Lastname. Now when I type in the cordova application the token it gets sends to a table named (User_Token). Now I want to check if that token in User_Token matches the generated token in User_Info. If they match I want to show that specific data.
This is my cordova html:
<input type="text" class="valueToken" name="usertoken" >
<button type="submit" class="postToken" id="submit" />PostToken </button>
This is my cordova js:
$('.postToken').click(function(){
console.log($('.valueToken').val());
var tokenValue = $('.valueToken').val();
$.ajax({
type: "POST",
url: "http://example.com/fysioWebapp/php/get_token.php",
data: { dataString: tokenValue },
cache: false,
success: function(){
alert("Order Submitted");
}
});
});
and this is the php on server side:
<?php
include("connect.php");
$stringData = $_POST['dataString'];
echo $stringData;
ini_set('display_errors', 1);
$insertToken = "INSERT INTO User_Token(Oefening_Token) VALUES ('$stringData')";
$tokenresult = mysqli_query($conn, $insertToken);
if($tokenresult){
echo "Successful";
}else {
echo "Error description: " . (mysqli_error($conn));
}
?>
So how can I achieve to check if it matches after that button press and if it matches show data.
This is btw the ajax get call:
$.ajax({
url: "http://example.com/fysioWebapp/php/get_schema.php",
type: "GET",
success: function(data) {
/* ...use the data to fill in some HTML elements... */
$('#myDiv').html(data);
},
error: function() {
/* ...show an error... */
}
});
and this the php to get data from that table:
<?php
include("connect.php");
$sqlGetSchema = "SELECT * FROM `Oefeningen`";
$result = $conn->query($sqlGetSchema);
if ($result->num_rows > 0) {
// output data of each row
while($row = $result->fetch_assoc()) {
$token = $row["Token"];
$surname = $row['Surname'];
$lastname = $row['Lastname'];
echo "<div class='". $token . "'><p>Token: " . $token . "</p>";
echo "<p>Surname: " . $surname ." Lastname:" . $lastname. "</p>";
}
} else {
echo("Error description: " . mysqli_error($conn));
}
$conn->close();
?>
So basically what I want to achieve is to compare the input value from cordova app in table User_Token with token in the other table. When it matches it has to show all content of matched token row.