lolwat.php

<?php

$thingsToBind = [
  [
    'value' => '123',
    'param' => 'first',
  ],
  [
    'value' => '321',
    'param' => 'second',
  ],
];

foreach ($thingsToBind as $bindParam) {
    $value = $bindParam['value'];
    
    /**
     * Since `$value` is passed by reference, each iteration the `$value` is overwritten and the previous bind is affected
     *
     * MUCH WOW
     */ 
    $sth->bindParam($bindParam['param'], $value, $bindParam['type']);
    $debugParams[$bindParam['param']] = $value;
}

/**
 * In effect, the binds are now:
 *  first - 321
 *  second - 321
 */