我如何从数组（）中删除它？

Question

如何从 $this->v 中删除“dato”？并且仍然在 $sql 字符串中。

输出 (var_dump($this->v))：

array (size=4)
  ':kategori' => string 'Youstube' (length=8)
  ':link' => string 'http://urls' (length=11)
  ':navn' => string 'Rss feeds' (length=9)
  ':dato' => string 'NOW()' (length=5)

输出（回显 $sql）

UPDATE rss_kategori SET kategori = :kategori, link = :link, navn = :navn, dato = NOW()

代码：

$classVars = get_class_vars(get_class($this));
            $sql .= "UPDATE {$this->table} SET ";
            foreach ($classVars as $key => $value) {
                if ($key == 'v' || $key == 'db' || $key == 'id' || $key == 'table' || $key ==
                    'table_id') {
                    continue;
                }
                $keys = "";
                $values = "";
                $keys .= $key;
                if ($this->$key == 'NOW()') {
                    $values .= $this->$key . ",";
                } else {
                    $values .= ":" . $key . ",";
                }
                $this->v[":" . $key] = $this->$key;
                $sql .= "{$keys} = " . $values . " ";

            }

            $sql = substr($sql, 0, -2) . " WHERE {$this->table_id} = '{$this->id}'";

Answer 1

请试试这个：

$key = ':dato';
$arr = $this->v;
if (array_key_exists($key, $this->v) {
     unset($arr[$key]);
     $this->v = $arr;
}

Answer 2

尝试使用unset() 函数。

unset($this->v['dato']);