PHP Product License Key Generator

SunLicense is a simple and robust PHP product license key generator class.

The goal of this class is to let you; Create random and unique license keys with default or user-defined parameters.

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Prefix attribute: This parameter let you add a prefix at the beginning of the license key. Optional; if you don't use this, the generated key will be with a non-prefix. You can use any string value. For example; if you use SLK as the value, your license key looks like SLK-.......

Template attribute: This parameter let you define the structure of the license key. Optional; if you don't use this, the license key will generate with the default template. You can use A for letters, 9 for numbers, and - for symbols. For example; AA9A9A-AA-99 returns EB3S0J-GT-49 license key.

Case attribute: This parameter let you change cases of the letters in the license key. Optional; if you don't use this, the license key will generate with the default case. You can use upper for uppercase, and lower for lowercase.

Count attribute: This parameter let you define the total number of license keys to be generated. Optional; if you don't use this, only one license key will be generated. You can use any integer value. For example; if you define 7 as the value, you will get 7 unique license keys.

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Installation

To utilize this class, first import SunLicense.php into your project, and require it. SunLicense requires PHP 5.5+ to work.

require_once ('SunLicense.php');

Initialization

Simple initialization with default parameters:

$license = new SunLicense();

or you can use inline parameters:

$license = new SunLicense('SLK', 'AA99-9A9A-A9A9-99AA', 'upper', 5); // prefix, template, case of letters, number of keys

All config parameters are optional.

It will use default parameters that are set in the class if you don't specify the parameters while creating the object.

Generate Single Key

$license = new SunLicense(); // or you can use inline parameters as above
echo $license->generate();

If you don't use count attribute (4th parameter), the class generates only one license key.

This license key will be returned as a string, therefore you can use it directly.

Generate Multiple Keys

$license = new SunLicense(null, null, null, 5); // generates 5 license keys
$keys = $license->generate(); // returned an array
foreach ($keys as $key) {
    echo $key . '<br>';
}

If you use count attribute (4th parameter), the class generates a defined number of license keys.

These license keys will be returned to an array, therefore you can't use it directly.