我想将一个数组传递给包含参数的PHP函数,所有参数都是可选的.我正在使用代码点火器,绝不是专家.以下是我到目前为止使用的内容：

function addLinkPost($postDetailArray) {

    if (isset($postDetailArray['title'])) {
        $title = $postDetailArray['title']; }
    else {
        $title = "Error: No Title";
    }

    if (isset($postDetailArray['url'])) {
        $url        = $postDetailArray['url'];
    } else {
        $url        = "no url";
    }
    if (isset($postDetailArray['caption'])) {
        $caption    = $postDetailArray['caption'];
    } else {
        $caption    = "";
    }
    if (isset($postDetailArray['publish'])) {
        $publish    = $postDetailArray['publish'];
    } else {
        $publish    = TRUE;
    }
    if (isset($postDetailArray['postdate'])) {
        $postdate   = $postDetailArray['postdate'];
    } else {
        $postdate   = "NOW()";
    }
    if (isset($postDetailArray['tagString'])) {
        $tagString  = $postDetailArray['tagString'];
    } else {
        $tagString = "";
    }

function addLinkPost(array $postDetailArray)
{
    $fields = array(
        'key' => 'default value','title' => 'Error: No Title',);

    foreach ($fields as $key => $default) {
        $$key = isset($postDetailArray[$key]) ? $postDetailArray[$key] : $default;
    }
}