php 删除指定数组元素方法

<?php
function deleteFromArray(&$array, $deleteIt, $useOldKeys = FALSE)
{
    $key = array_search($deleteIt,$array,TRUE);
    if($key === FALSE)
        return FALSE;
    unset($array[$key]);
    if(!$useOldKeys)
        $array = array_values($array);
    return TRUE;
}
?>

<?php
function deleteFromArray(&$array, $deleteIt, $useOldKeys = FALSE)
{
    $tmpArray = array();
    $found = FALSE;
    foreach($array as $key => $value)
    {
        if($value !== $deleteIt)
        {
            if(FALSE === $useOldKeys)
            {
                $tmpArray[] = $value;
            }
            else
            {
                $tmpArray[$key] = $value;
            }
        }
        else
        {
            $found = TRUE;
        }
    }
  
    $array = $tmpArray;
  
    return $found;
}
?>