標籤：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>第一個php程式</title></head><body><script language="php"> echo ‘Hello World !‘ ;</script><? echo ‘Hello World !‘ ; ?><% echo ‘Hello World !‘ ; %><?php echo "Hello World !" ; //單行注釋 echo "<p>" ; /* 多行注釋 */ #shell指令碼風格注釋 $boo = true ; if ($boo == true) { echo ‘變數$boo為真‘ ."<br>" ; } $str = ‘字串‘ ; echo "$str" ; echo ‘$str‘ ."<br>" ; $arr = array(‘a1‘,‘a2‘,‘a3‘) ; echo "當前檔案路徑： " .__FILE__ ."<br>" ; //預定義常量 $str1 = $str ; //賦值，使用各自記憶體 $str2 = & $str1 //引用賦值(相當於另起一名字) ?><?php function fun1($sum) //定義函數 { return "$sum * $sum = ".$sum * $sum ; } echo fun1(10) ."<br>" ; $con = mysql_connect("localhost","root","newman");//串連MySQL資料庫 if (!$con) { die(‘Could not connect: ‘ . mysql_error()); }/* if (mysql_query("CREATE DATABASE my_db",$con)) { //建立資料庫 echo "Database created"; } else { echo "Error creating database: " . mysql_error(); }*/ mysql_select_db("my_db", $con); //選取資料庫/* $sql = "CREATE TABLE Persons ( personID int NOT NULL AUTO_INCREMENT, PRIMARY KEY(personID), FirstName varchar(15), LastName varchar(15), Age int )";*//* mysql_query("INSERT INTO Persons (FirstName, LastName, Age) VALUES (‘Peter‘, ‘Griffin‘, ‘35‘)"); mysql_query("INSERT INTO Persons (FirstName, LastName, Age) VALUES (‘Glenn‘, ‘Quagmire‘, ‘33‘)");*/ $result = mysql_query("SELECT * FROM Persons WHERE FirstName=‘Peter‘"); //$result = mysql_query("SELECT * FROM Persons ORDER BY age"); mysql_query("UPDATE Persons SET Age = ‘36‘ WHERE FirstName = ‘Peter‘ AND LastName = ‘Griffin‘"); //mysql_query("DELETE FROM Persons WHERE LastName=‘Griffin‘"); while($row = mysql_fetch_array($result)) { echo $row[‘FirstName‘] . " " . $row[‘LastName‘] . " " . $row[‘Age‘]; echo "<br />"; } mysql_close($con);?></body></html>
第一次需運行注釋內的建立資料庫和資料庫表，注釋掉了向資料庫表添加記錄代碼，以免多次添加。
PHP入門
Start building with 50+ products and up to 12 months usage for Elastic Compute Service
1 on 1 presale consultation
24/7 Technical Support 6 Free Tickets per Quarter Faster Response
Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.
A comprehensive suite of global cloud computing services to power your business
Payment Methods We Support
