/***************************by garcon1986************************************/
<?php
error_reporting(E_ALL ^ E_NOTICE);
//create database test
//create table php_radio(id int(10) NOT NULL AUTO_INCREMENT, name varchar(100), description varchar(1000), primary key(id));
//insert php_radio values(1, 'eat','you have eaten ...');
//insert php_radio values(2, 'drink', 'you have drank ...');
//insert php_radio values(3, 'sleep', 'you have sleep ...');
echo "<html><head></head>";
echo "<body>";
echo "<form action='use_radio.php' method='GET'>";
echo "<input type='radio' name='radio' value='eat'>Eat</input>";
echo "<input type='radio' name='radio' value='drink'>Drink</input>";
echo "<input type='radio' name='radio' value='sleep'>Sleep</input>";
echo "<input type='submit' name='search_radio' value='Button' />";
echo "</form>";
$radio_name = $_GET['radio'];
//echo $radio_name;
mysql_connect("localhost","charles","charles");
mysql_select_db("test");
$query = 'select * from php_radio where name = "'.$radio_name.'"';
//echo $query;
$result = mysql_query($query) or die("query error: ".mysql_error());
while($aa = mysql_fetch_assoc($result)){
echo $aa['id']." ";
echo $aa['name']." ";
echo $aa['description']."<br>";
}
//mysql_free_result($result);
echo "</body>";
echo "</html>"
?>
在生产应用中，某台“Nginx+PHP+MySQL”接口数据服务器，扮演的角色十分重要，如果服务器硬件或Nginx、MySQL发生故障，而短时间内无法恢复，后果将非常严重。为了避免单点故障，我设计了此套方案，编写了failover.sh脚本，实现了双机互备、全自动切换，故障转移时间只需几十秒。
一、双机互备、全自动切换方 ......
PHP的执行效率是有目共睹的，这也是我喜欢它的原因之一，和它称为绝妙搭档的Mysql以及Apache想融合，不能不惊叹其效率了。PHP更新也很快，这里列举了目前最新版本PHP4.3.2RC4（几乎没有BUG了，估计写完这篇不久后正式版就出了），和最新版本的Mysql4.0.13的安装过程。
PHP的安装文件可以直接到 &nb ......
/***************************by
garcon1986********************************/
<?php
// variable name is sensitive
$var = "sjg";
$Var = "wl";
echo $var.' loves '.$Var.'<br>';
echo "$var, $Var<p>";
//naming conventions for variables
//$4site = 'not y ......
