PHP MySql增刪改查的簡單一實例，phpmysql增刪執行個體_PHP教程

PHP MySql增刪改查的簡單一實例，phpmysql增刪執行個體

mysql_connect()串連資料庫

mysql_select_db選擇資料庫

mysql_fetch_assoc()擷取結果集

mysql_query()執行sql語句

執行個體如下：

<?php  $con=@mysql_connect('localhost','root','root');//串連資料庫  mysql_select_db('test',$con);//選擇資料庫  $userInfo=mysql_query("select * from user",$con);//建立sql語句  echo "
 
  ";  while($row=mysql_fetch_assoc($userInfo))//擷取結果集每一行的資料  {    echo "
  
    "; echo "
    "; echo "
    "; echo "
    "; echo "
   "; } echo "
  

   
"; echo $row['id'];//擷取行中的id echo "
"; echo $row['username']; echo "
"; echo $row['password']; echo "
 
";  mysql_free_result($userInfo);//釋放結果集  mysql_close($con); //關閉資料庫  /*delete  $d=@mysql_connect('localhost','root','root');  mysql_select_db('test',$d);  mysql_query("delete from user where id=1",$d);  mysql_close($d);  */  /*insert  $i=@mysql_connect('localhost','root','root');  mysql_select_db('test',$i);  mysql_query("insert into user(username,password) values('ad','ad')",$i);  mysql_close($i);  */  //update  $u=@mysql_connect('localhost','root','root');  mysql_select_db('test',$u);  mysql_query("update user set username='aaa' where username='00'",$u);  echo "update user set username='ax' where id=2";  mysql_close($u);?>

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