如何查找extend class方法的默认值

时间:2017-11-20 08:05:19

标签: php pdostatement

我想定义带有PDOStatement扩展的新类,在这个子类中我需要覆盖函数bindColumn(PDOStatement::bindColumn),并在此覆盖函数中调用parent :: bindColumn()。但我找不到此方法的默认值。有没有办法在我想覆盖的任何方法中找到默认值?在源代码或某处? 我需要覆盖更多功能,我想找到任何默认值。谢谢

class myStatement extends PDOStatement
{

    public function bindColumn ($column, &$param, $type = ?, $maxlen = ?, $driverdata = ?)
    {

    }

}

2 个答案:

答案 0 :(得分:0)

此方法的签名是:

public function bindColumn ($column, &$param, $type = null, $maxlen = null, $driverdata = null) {}

您可以使用像PHPStorm这样的现代IDE来查找任何方法的签名和其他有用信息

答案 1 :(得分:0)

我发布此答案的唯一原因是我不能将其作为评论发布。

/**
 * (PHP 5 &gt;= 5.1.0, PECL pdo &gt;= 0.1.0)<br/>
 * Bind a column to a PHP variable
 * @link http://php.net/manual/en/pdostatement.bindcolumn.php
 * @param mixed $column <p>
 * Number of the column (1-indexed) or name of the column in the result set.
 * If using the column name, be aware that the name should match the
 * case of the column, as returned by the driver.
 * </p>
 * @param mixed $param <p>
 * Name of the PHP variable to which the column will be bound.
 * </p>
 * @param int $type [optional] <p>
 * Data type of the parameter, specified by the PDO::PARAM_* constants.
 * </p>
 * @param int $maxlen [optional] <p>
 * A hint for pre-allocation.
 * </p>
 * @param mixed $driverdata [optional] <p>
 * Optional parameter(s) for the driver.
 * </p>
 * @return bool <b>TRUE</b> on success or <b>FALSE</b> on failure.
 */
public function bindColumn ($column, &$param, $type = null, $maxlen = null, $driverdata = null) {}

让自己成为一个体面的IDE人,它会创造奇迹。