假设 "Persons" 表有一个自动生成的 id 字段。返回上次查询的 id:
<?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();
}
$mysqli -> query("INSERT INTO Persons (FirstName, LastName, Age) VALUES ('Glenn', 'Quagmire', 33)");
// Print auto-generated id
echo "New record has id: " . $mysqli -> insert_id;
$mysqli -> close();
?>
查看底部的程序样式示例。
mysqli_insert_id() 函数返回上次查询的 id(使用 AUTO_INCRMENT 生成)。
$mysqli -> insert_id
mysqli_insert_id(
connection)
Parameter | Description |
---|---|
connection | Required. Specifies the MySQL connection to use |
返回值: | 一个整数,表示上次查询更新的 AUTO_INCREMENT 字段的值。如果没有更新或没有 AUTO_INCRMENT 字段,则返回零 |
---|---|
PHP 版本: | 5+ |
假设 "Persons" 表有一个自动生成的 id 字段。返回上次查询的 id:
<?php
$con = mysqli_connect("localhost","my_user","my_password","my_db");
if (mysqli_connect_errno()) {
echo "Failed to connect to MySQL: " . mysqli_connect_error();
exit();
}
mysqli_query($con, "INSERT INTO Persons (FirstName, LastName, Age) VALUES ('Glenn', 'Quagmire', 33)");
// Print auto-generated id
echo "New record has id: " . mysqli_insert_id($con);
mysqli_close($con);
?>
截取页面反馈部分,让我们更快修复内容!也可以直接跳过填写反馈内容!