Bulk SMS Templating

sms.php

<?php

$sms = "Dear {{name}}, {{amount}} has been deposited to your bank account. Your current balance is {{balance}}. Thank you for banking with us.";
$required = ['{{name}}','{{amount}}','{{balance}}'];
$values = [
  $required[0] => 'John Doe',
  $required[1] => 'KES 5,000',
  $required[2] => 'KES 75,000'
];

$sms = str_replace('}}','}} ', $sms);
$is_valid = (count($required) == count(array_intersect(explode(' ', strtolower($sms)), $required)));


if($is_valid){
  echo strtr($sms, $values);
}
else{
  echo "Unable to parse template";
}