RowResult::getColumnsCount
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RowResult::getColumnsCount — Get column count
说明
public mysql_xdevapi\RowResult::getColumnsCount
( void
) : integer
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(). |
范例
Example #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();
以上例程的输出类似于：
2