How to Generate 6 Digit Unique Random String in PHP?

Hello friends, today I will tell you through experts php tutorial how you can generate 6 digit random string through php. So let’s try to understand.

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<?php
$sixdigit=6;
function getName($sixdigit) {
$total_characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
$randomString = '';
for ($i = 0; $i < $sixdigit; $i++) {
$index = rand(0, strlen($total_characters) - 1);
$randomString .= $total_characters[$index];
}
return $randomString;
}
echo getName($sixdigit);
?>

You have been told well above through the code of php. How to get alpha variable in a variable by telling a unique random string of 6 digits. You copy this code and save it in your file. You can try running it on your server.