//实例化一个mysqli对象,并打开一个连接
if(mysqli_connect_errno()){ //检查是否可以正确打开数据库
echo "<font color=‘red‘>unable to connect!</font>";
}
$SQL_SELECT_SYMBOLS="select * from symbols";
if($result=$mysqli->query($SQL_SELECT_SYMBOLS)){
if($result->num_rows>0){
echo ‘<table cellpadding="10" border="1">‘;
echo ‘<tr><th>id</th><th>country</th><th>animal</th><th>cname</th></tr>‘;
while($arr=$result->fetch_array()){
echo "<tr>";
echo "<td>".$arr[0]."</td>";
echo "<td>".$arr[1]."</td>";
echo "<td>".$arr[2]."</td>";
echo "<td>".$arr[3]."</td>";
echo "</tr>";
}
echo "</table>";
}
else{
echo "记录未找到!";
}
$result->close(); //释放记录集所占用的内存
}
else{
echo "error in query:$query.".$mysqli->error;
}
$mysqli->close(); //关闭数据库连接
?>
php示例代码之使用mysqli对象
标签：