php連接mysql數據庫代碼

php連接mysql數據庫代碼
  書山有路勤爲徑,學海無涯苦作舟。學習PHP就要勤奮。下面是php連接mysql數據庫代碼,歡迎閱讀參考!  <?php  $mysql_server_name="localhost"; //數據庫服務器名稱$mysql_username="root"; // 連接數據庫用戶名$mysql_password="111111"; // 連接數據庫密碼$mysql_database="phptest"; // 數據庫的名字// 連接到數據庫$conn=mysql_connect($mysql_server_name, $mysql_username,$mysql_password);// 從表中提取信息的sql語句$strsql="select * from test";  // 執行sql查詢  $result=mysql_db_query($mysql_database, $strsql, $conn);// 獲取查詢結果$row=mysql_fetch_row($result);echo '<font face="verdana">';  echo '<table border="1" cellpadding="1" cellspacing="2">';// 顯示字段名稱echo "n<tr>n";for ($i=0; $i<mysql_num_fields($result); $i++){echo '<td bgcolor="#ff0F00"><b>'.  mysql_field_name($result, $i);  echo "</b></td>n";  }  echo "</tr>n";  // 定位到第一條記錄  mysql_data_seek($result, 0);  // 循環取出記錄  while ($row=mysql_fetch_row($result))  {  echo "<tr>n";  for ($i=0; $i<mysql_num_fields($result); $i++ ){echo '<td bgcolor="#00FF00">';echo "$row[$i]";  echo '</td>';  }  echo "</tr>n";  }  echo "</table>n";  echo "</font>";  // 釋放資源  mysql_free_result($result);  // 關閉連接  mysql_close();  ?>  -------------------------------------------------------------------------------------  <?php$link = mysql_connect("mysql_host", "mysql_user", "mysql_password") or die("Could not connect");print "Connected successfully";mysql_select_db("my_database") or die("Could not select database");$query = "SELECT * FROM my_table";$result = mysql_query($query) or die("Query failed");print "<table>n";while ($line = mysql_fetch_array($result, MYSQL_ASSOC)) { print "t<tr>n"; foreach ($line as $col_value) { print "tt<td>$col_value</td>n"; } print "t</tr>n"; } print "</table>n";mysql_free_result($result);mysql_close($link);?>  -------------------------------------------------------------------------------------  代碼單獨存爲一個文件,在以後要用到這些代碼時只要include這個頁面就可以了.如這個頁面要要添加數據入數據庫,那麼在裏include "";