Control multiple print of message based on database results - php

Question

After following some answers and articles finally i came up with the function that will generate key(number) automatically when it is not exist in the database and codes works, but the problem is when the code exist the notification that "CODE EXIST" form something like a loop and print multiple notifications. Base on my codes where do i get it wrong and how can I fix it?
<?php
//HERE IS THE FUNCTION
function MyFunction($xIsConnection){
// CODE GENERATION
//$Code=(rand(10,1000));
$Code='001';
$query= "SELECT * FROM parent WHERE code='$Code'";
if($result= mysqli_query($xIsConnection,$query)){
if(mysqli_num_rows($result)>0){
echo " CODE EXIST<br>";
// CALL FUNCTION TO GENERATE NEW CODE
MyFunction($xIsConnection);
}
else{
echo "NOT EXIST <br>";
echo $Code;
}
}
else{
echo"failed";
}
}
require_once('dbConnect.php');
MyFunction($con);
mysqli_close($con);
?>

Answer 1

The answer is never ending recursion.
<?php
//HERE IS THE FUNCTION
function MyFunction($xIsConnection){
// CODE GENERATION
//$Code=(rand(10,1000));
$Code='001';
$query= "SELECT * FROM parent WHERE code='$Code'";
if($result= mysqli_query($xIsConnection,$query)){
if(mysqli_num_rows($result)>0){
echo " CODE EXIST<br>";
// CALL FUNCTION TO GENERATE NEW CODE
MyFunction($xIsConnection); // this line is responsible for your error. Recursion
}
else{
echo "NOT EXIST <br>";
echo $Code;
}
}
else{
echo"failed";
}
}
require_once('dbConnect.php');
MyFunction($con);
mysqli_close($con);
?>