PHP Function that Generates Random Characters

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function cvf_ps_generate_random_code($length=10) {

$string = '';
// You can define your own characters here.
$characters = "23456789ABCDEFHJKLMNPRTVWXYZabcdefghijklmnopqrstuvwxyz";

for ($p = 0; $p < $length; $p++) {
$string .= $characters[mt_rand(0, strlen($characters)-1)];
}

return $string;

}

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