以一个简单的实例进行展示，代码逻辑为：进行连接、创建一个表、插入数据、获取数据并显示结果。
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(1)：命令行建立test数据库
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(2)：以下是php脚本(进行连接、创建一个表、插入数据、获取数据并显示结果)
class="php" name="code"><?php
//连接数据库
$mysqli = new mysqli("localhost", "root", "", "test");
if(mysqli_connect_errno()){
printf("Connect failed:%\n",mysqli_connect_error());
exit();
} else {
//建立表testtable
$sql="create table testtable(id int not null primary
key auto_increment,testField varchar(75))";
$res=mysqli_query($mysqli, $sql);
if($res=true){
echo "Table testtable successfully created.";
//插入一条记录
$sql_1="insert into testtable(testField) values
('some value')";
$res_1=mysqli_query($mysqli, $sql_1);
if ($res_1=true) {
echo "<br/>A record has been inserted.";
//查询记录
$sql_2="select * from testtable";
$res_2=mysqli_query($mysqli, $sql_2);
if ($res_2){
//显示记录条数
$number_of_rows = mysqli_num_rows($res_2);
printf("<br/>Result set has %d rows.\n",$number_of_rows);
//获取数据并显示结果
while ($newArray = mysqli_fetch_array($res_2, MYSQLI_ASSOC)){
$id = $newArray['id'];
$testField = $newArray['testField'];
echo "<br/>The ID is ".$id." and the text is ".$testField."<br/>";
}
} else {
printf("Could not retrieve records:%s\n",mysqli_error($mysqli));
}
} else {
printf("Could not insert record:%s\n",mysqli_error($mysqli));
}
} else {
printf("Could not create table:%s\n",mysqli_error($mysqli));
}
mysqli_close($mysqli);
}
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通过服务器访问，效果如下：
进入命令行查看数据库
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