PHP form data is written into MySQL code, and PHP form is written into mysql

<h1>插入操作</h1>  
<?<span>php  
    </span><span>if</span>(!<span>isset</span>(<span>$_POST</span>['submit'<span>])){  
        </span><span>//</span><span>如果沒有表單提交，顯示一個表單  </span>
?>  
    <form action="" method="post"><span>  
    國家：</span><input type="text" name="country" /><span>  
    動物名稱（英文）：</span><input type="text" name="animal" /><span>  
    動物名稱（中文）：</span><input type="text" name="cname" />  
    <input type="submit" name="submit" value="提交表單" />  
    </form>  
<?<span>php  
    }  
    </span><span>else</span><span>  
    {  
        </span><span>//</span><span>如果提交了表單  
        //數(shù)據(jù)庫連接參數(shù)  </span>
        <span>$host</span> = "localhost"<span>;  
        </span><span>$user</span> = "root"<span>;  
        </span><span>$pass</span> = "zq19890319"<span>;  
        </span><span>$db</span> = "phpdev"<span>;  
         
        </span><span>//</span><span> 何問起 hovertree.com
        //取得表單中的值，檢查表單中的值是否符合標(biāo)準(zhǔn)，并做適當(dāng)轉(zhuǎn)義，防止SQL注入  </span>
        <span>$country</span> = <span>empty</span>(<span>$_POST</span>['country'])? <span>die</span>("請輸入國家名稱"):  
        <span>mysql_escape_string</span>(<span>$_POST</span>['country'<span>]);  
        </span><span>$animal</span> = <span>empty</span>(<span>$_POST</span>['animal'])? <span>die</span>("請輸入英文名"):  
        <span>mysql_escape_string</span>(<span>$_POST</span>['animal'<span>]);  
        </span><span>$cname</span> = <span>empty</span>(<span>$_POST</span>['cname'])? <span>die</span>("請輸入中文名"):  
        <span>mysql_escape_string</span>(<span>$_POST</span>['cname'<span>]);  
          
        </span><span>//</span><span>打開數(shù)據(jù)庫連接  </span>
        <span>$connection</span> = <span>mysql_connect</span>(<span>$host</span>, <span>$user</span>, <span>$pass</span>) or <span>die</span>("Unable to connect!"<span>);  
          
        </span><span>//</span><span>選擇數(shù)據(jù)庫  </span>
        <span>mysql_select_db</span>(<span>$db</span>) or <span>die</span>("Unable to select database!"<span>);  
          
        </span><span>//</span><span>構(gòu)造一個SQL查詢  </span>
        <span>$query</span> = "INSERT INTO symbols(country, animal, cname) VALUE('<span>$country</span>', '<span>$animal</span>', '<span>$cname</span>')"<span>;  
          
        </span><span>//</span><span>執(zhí)行該查詢  </span>
        <span>$result</span> = <span>mysql_query</span>(<span>$query</span>) or <span>die</span>("Error in query: <span>$query</span>. ".<span>mysql_error</span><span>());  
          
        </span><span>//</span><span>插入操作成功后，顯示插入記錄的記錄號  </span>
        <span>echo</span> "記錄已經(jīng)插入， mysql_insert_id() = ".<span>mysql_insert_id</span><span>();  
          
        </span><span>//</span><span>關(guān)閉當(dāng)前數(shù)據(jù)庫連接  </span>
        <span>mysql_close</span>(<span>$connection</span><span>);  
    }  
</span>?> 

Reference: http://www.cnblogs.com/roucheng/p/phpmysql.html

The above code uses different formats, I don’t know which format is better

1. Insert operation

3. ?if(!isset($_POST['submit' ])){
4. //If no form is submitted, display a form
5. ?>
6. "" method="post">
7. Country: "text" name="country" />
8. Animal name (English): "text" name="animal" />
9. Animal name (Chinese): "text" name="cname" />
10. "submit" name="submit" value="submit Form" />
13. }
14. else
15. {
16. //If the form is submitted
17. //Database connection parameters
18. $host = "localhost";
19. $user = "root";
20. $pass = "zq19890319";
21. $db = "phpdev";
22. ?
23. //Get the value in the form, check whether the value in the form meets the standards, and escape it appropriately to prevent SQL injection
24. ?$country = empty($_POST[ 'country'])? die("Please enter the country name"):
25. mysql_escape_string($_POST['country']);
26. ?$animal = empty($_POST[ 'animal'])? die("Please enter your English name"):
27. mysql_escape_string($_POST['animal']);
28. ?$cname = empty($_POST[ 'cname'])? die("Please enter your Chinese name"):
29. mysql_escape_string($_POST['cname']);
30. ?
31. //Open the database connection hovertree.com He asked
32. ?$connection = mysql_connect($host, $user, $pass) or die("Unable to connect!");
33. ?
34. //Select database
35. mysql_select_db($db) or die( "Unable to select database!");
36. ?
37. //Construct a SQL query
38. ?$query = "INSERT INTO symbols(country, animal, cname) VALUE('$country', '$animal', '$cname ')";
39. ?
40. ?//Execute the query?
41. $result = mysql_query($query) or die("Error in query: $query. ".mysql_error());
42. ?
43. //After the insertion operation is successful, the record number of the inserted record is displayed
44. ?echo "The record has been inserted, mysql_insert_id() = ".mysql_insert_id();
45. ?
46. //Close the current database connection
47. mysql_close($connection);
48. }
49. ?>