Useful snippet for generating quick random passwords

generatePasswords.php

<?php

$keyspace = '123456789abcdefghjkmnpqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ';
$keyspaceLength = mb_strlen($keyspace, 'utf-8') - 1;

$numberOfPasswords = 8;
$numberOfChars = 16;

$passwords = [];

for ($y = 0; $y < $numberOfPasswords; $y++)
{
  $password = '';

  for ($i = 0; $i < $numberOfChars; $i++)
  {
    $password .= $keyspace[random_int(0, $keyspaceLength)];
  }

  array_push($passwords, $password);
}

var_dump($passwords);