RowResult::getColumnsCount

(No version information available, might only be in Git)

RowResult::getColumnsCount — Get column count

说明

public mysql_xdevapi\RowResult::getColumnsCount(): int

Retrieve the column count for columns present in the result set.

参数

此函数没有参数。

返回值

The number of columns; 0 if there are none.

更新日志

版本 说明
8.0.14 Method renamed from getColumnCount() to getColumnsCount().

示例

示例 #1 mysql_xdevapi\RowResult::getColumnsCount() example

<?php
$session = mysql_xdevapi\getSession("mysqlx://user:password@localhost");

$session->sql("DROP DATABASE addressbook")->execute();
$session->sql("CREATE DATABASE foo")->execute();
$session->sql("CREATE TABLE foo.test_table(x int)")->execute();
$session->sql("INSERT INTO addressbook.names values ('John', 42), ('Sam', 33)")->execute();

$sql = $session->sql("SELECT * from addressbook.names")->execute();

echo $sql->getColumnsCount();

以上示例的输出类似于：

2