Php/func mysqli info
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PHP mysqli info()函数
示例-面向对象的样式
返回有关最后执行的查询的信息:
<?php $mysqli = new mysqli("localhost","my_user","my_password","my_db"); if ($mysqli -> connect_errno) { echo "Failed to connect to MySQL: " . $mysqli -> connect_error; exit(); } // Perform some queries $mysqli -> query("CREATE TABLE testPersons LIKE Persons"); $mysqli -> query("INSERT INTO testPersons SELECT * FROM Persons ORDER BY LastName"); echo $mysqli -> info; $mysqli -> close(); ?>
在底部查看程序样式的示例。
定义和用法
info / mysqli_info()函数返回有关上次执行查询的信息。
此函数适用于以下查询类型:
- 插入...选择...
- 插入...值(...),(...),(...)
- 加载数据文件...
- 更改表...
- 更新......
句法
面向对象的样式:
$mysqli -> info
程序风格:
mysqli_info(connection)
参数值
参数 | 描述 |
---|---|
connection | 需要。指定要使用的MySQL连接 |
技术细节
返回值: | 包含有关最后执行的查询的其他信息的字符串 |
PHP版本: | 5+ |
示例-程序风格
返回有关最后执行的查询的信息:
<?php $con = mysqli_connect("localhost","my_user","my_password","my_db"); if (mysqli_connect_errno()) { echo "Failed to connect to MySQL: " . mysqli_connect_error(); exit(); } // Perform som queries mysqli_query($con, "CREATE TABLE testPersons LIKE Persons"); mysqli_query($con, "INSERT INTO testPersons SELECT * FROM Persons ORDER BY LastName"); echo mysqli_info($con); mysqli_close($con); ?>