How to Generate 7 Digit Unique Random String Using PHP?

Hello friends, today I will tell you through experts php tutorial how you can generate 7 digit random string through php. So let’s try to understand.

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$sevendigit = 7; 
function getName($sevendigit) { 
$total_characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; 
$randomString = ''; 
for ($i = 0; $i < $sevendigit; $i++) { 
$index = rand(0, strlen($total_characters) - 1); 
$randomString .= $total_characters[$index]; 
return $randomString; 
echo getName($sevendigit); 

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.