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PHP MySQL ??

PHP? ???? ??????? ???? ??? ? ????.
MySQL? PHP? ?? ???? ?? ?? ???? ?? ?? ?????? ??????.
? ?? MySQL ??? ?? ??? ? ???? MySQL ????? ?????.

PHP? ????? MySQL

MySQL? ??? ??????(??? ?????? ?? ???)??, ?? ?? "???"??? ???.

??? ??????? ??? ?? ?? ?? ?? ?? ???? ?????.

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??: ? ?? ??;

?: ??? ??? ??? ??? ?? ;

?(col): ? ?? ??/??? ?? ??? ???? ? ?????.

?( value): ?? ?? ??, ? ?? ?? ??? ??? ???? ???.

?(key): ??? ???? ?? ??? ???? ? ?????. ? ?? ?? ??? ?????.


? ??? ???? ???? ???? ???? ?? ? ??? ??? ?????? ???? ?????. ??? MySQL? ??? ?????.

MySQL? ??? ???? ?????? ??????.

MySQL? ???? ???? ?????? ??????.

MySQL? ??? ? ??? ?????? ??? ??????.

MySQL? ?? ??? ????? ???? ????.

MySql? ?? ????? ??? ????? ?????? ?????.

MySQL? ?? SQL? ?????.

MySQL? ?? ????? ??????.

MySQL? ??? ?????? ??? ? ????.

MySQL? Oracle Corporation?? ??, ?? ? ?????.

MySQL? ?? ???? Monty Widenius? ?? My? ??? ?? ???????.

PHP? MySql? ???? ?????. PHP? ??? MySql ?? ??? ???? MySql? ???? ?????.

MySQL? ???? ???? ?????. ???? ?? ??? ??? ?? ???? ?????.


??????? ??? ?????? ??? ? ?? ?????. ??? ???????? ??? ?? ???? ?? ? ????.

??: ?? ??? ???.

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PHP + MySQL

?? MySQL ??????? ????? PHP? ?? ?????.

PHP? MySQL? ??? ??? ??????. (Windows?? ???? Unix ???? ??? ? ????.)

Query

??? ?? ?? ?????.

MySQL? ?? ??????? ?? ??? ???? ??? ??? ??? ?? ? ????.

?? ??? ??????(?? SQL ??).

mysql> ?? ?? utf8;
mysql> SELECT ??(?) FROM ? ???(?????? ??? ??);
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set names utf8;

? ???? ????? ??? ? ??? ?????? ???? ???? ? ?????. ? ??? "websites" ???? "name" ?? ?? ?? ???? ?????.

???? MySQL? ???? ?? ?? ????, ?? ???? ?? ?????? ??? ???????.

SQL? ?? ??? ????? SQL ????? ?????.

MySQL ?????? ????PHP ??? MySQL ??????? ?? ?? ???? MySQL? ??? ????? ? ????: http:// www.mysql.com.


?? MySQL ??????? ???? WampServer, PhpStudy ?? ?? ?????? ??? ?? ????.

MySQL ??????? ?? ??MySQL? ?? ?? ? ??? ??? ?????? ?? ????? ??? ? ??? ????.

? ??? ?? ???? MySQL? ?? ?? ???? ??? ? ??? ?????.


?? MySQL? ??? ?? ???? ???? ???? ????(?: Friendster, Yahoo, Google)? ??? ?? ?????????.

? ??? MySQL? ???? ??? ?? ??? ?????: http://www.mysql.com/customers/.

??????? ?????? ?? ????? ????? ????? MySQL? ???????? ??? ???. ??? ??? ???? ??? ???????? ???.

??? ?????? ?? ?????? ?? ??????? ??? ? ????. ? ??????? ?? ??? ???? ?? ? ??? ? ??? ???? ?? ??? ?? ? ????.


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<?php // 這段代碼需要預先創(chuàng)建好數(shù)據(jù)庫和表才能運行 $conn = mysqli_connect($servername,$username,$password); // 獲取連接 if($conn){ //判斷是否連接 mysqli_select_db($conn,"db_name"); // 選擇一個數(shù)據(jù)庫 mysqli_query($conn,"set names utf8"); // 查詢輸出要使用utf8的編碼格式，避免亂碼 $sql = "select * from product;"; // 查找到數(shù)據(jù)庫的product表（） $result = mysqli_query($conn,$sql); // 從鍵連獲取到數(shù)據(jù)庫的字表 while($row = mysqli_fetch_array($result,MYSQL_ASSOC)){ // MYSQLI_ASSOC返回鍵值形式數(shù)組 echo $row["需要輸出的表中列的名稱"]; } mysqli_free_result($result); // 釋放內(nèi)存在 mysqli_close($conn); // 關(guān)閉連接 echo "成功"; }else{ echo "失敗"; }; ?>