php示例代码之使用MySQLi接口

<?php 
  //连接参数
  $host="localhost";
  $user="root";
  $pwd="111111";
  $db="test";
  
  $linkID =mysqli_connect($host,$user,$pwd,$db); //创建一个mysql连接
  
  if(!$linkID){
  	echo "<font color='red'>unable to connect!</font>";
  }
  
  $SQL_SELECT_SYMBOLS="select * from symbols"; 
  
  $result=mysqli_query($linkID,$SQL_SELECT_SYMBOLS)or die("error in query :$query. ".mysql_errno()); //执行SQL语句
  
  if(mysqli_num_rows($result)>0){
  	echo '<table cellpadding="10" border="1">';
  	echo '<tr><th>id</th><th>country</th><th>animal</th><th>cname</th></tr>';
  	 while($row=mysqli_fetch_row($result)){
  	 	echo "<tr>";
  	 	echo "<td>".$row[0]."</td>";
  	 	echo "<td>".$row[1]."</td>";
  	    echo "<td>".$row[2]."</td>";
  	    echo "<td>".$row[3]."</td>";
  	 	echo "</tr>";
  	 }
  	 echo "</table>";
  }
  else{
  	echo "记录未找到!";
  }
  
  mysqli_free_result($result); //释放记录集所占用的内存
  
  mysqli_close($linkID); //关闭数据库连接
?>