建立动态的WML站点三 -pc6资讯

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建立动态的WML站点三 时间：2004/11/7 3:27:00来源：本站整理作者：蓝点我要评论(0): 接着用户必须在下一个文件（index3.wml）中输入。我们要求用户输入科目的名字或者教授的姓。你要留意一下变量在页面之间是怎样传送的。语法看来有点复杂，不过可以让你了解整个过程是怎样通过几个文件来完成的。

<？php

Header("Content-type: text/vnd.wap.wml");

header("Cache-Control: no-cache, must-revalidate");

header("Pragma: no-cache");

echo ("＜？xml version='1.0'？＞;");

＞;

＜!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.1//EN"

"http://www.wapforum.org/DTD/wml_1.1.xml" ＞; ＜WML＞

＜CARD id=card3 title=Name＞

＜？php

echo ("＜p＞Insert ");

if (${$choice} == "surname") {

echo ("professor's surname (or part of it).n");

} else if (${$choice} == "subject") {

echo ("the subject (or part of it).n");

} else {

echo ("Maybe there is some problem.n");

} echo ("＜INPUT name='"${$choice}"' type='"text"'＞");

？>

＜DO type="text" label="Go"＞

＜GO href="query.wml" method="get"＞

<？php

echo ("＜POSTFIELD value='"$"."$choice".""/' name='"$choice"'＞");

echo ("＜POSTFIELD value='"$"."${$choice}".""/' name='"${$choice}"'＞");

？>

＜/GO＞

＜/DO＞

＜P＞＜/P＞

＜/CARD＞

＜/WML＞

＜DO type="text" label="Go"＞

＜GO href="index3.wml#card3" method="get"＞

<？php

echo ("＜POSTFIELD value='"$"."$choice".""/' name='"$choice"'＞");

echo ("＜POSTFIELD value='"$choice"/' name='"choice"'＞");

？>

＜/CARD＞

＜/WML＞

写查询代码

以下的文件负责处理查询。它的名字是query.wml，我们将更详细地分析它。

<？php

Header("Content-type: text/vnd.wap.wml");

printf("<？xml version="1.0"？>n");

printf("n");

printf("n");

// 以下各行是用来为查询授课时间构造SQL语句的

$consulting_tables =

"(professors left join teach on (professors.Id = teach.Id), subjects)";

$consulting_columns =

"professors.Surname, professors.Name, subjects.Subject , ";

$consulting_columns .=

"subjects.Cod_number, professors.Consulting_hour, professors.Consulting_place";

$consulting_query=

"subjects.Cod_Subject = teach.Cod_subject ";

// 以下各行是用来为查询测验时间构造SQL语句的

$exams_tables= "(exams left join professors ON (exams.Id = professors.Id), subjects)";

$exams_columns= "subjects.Subject , subjects.Cod_number, professors.Surname, ";

$exams_columns.= "professors.Name, exams.Date, exams.Time, exams.Room, exams.Test";

$exams_query= "exams.Cod_Subject = subjects.Cod_Subject ";

// 以下各行是用来为查询测验时间表的sql语句增加查询限制

if ($exams_data) {

switch($exams_data) {

case "subject":

$exams_query.= " and subjects.Subject like '%$subject%'";

break;

case "surname":

$exams_query.= " and professors.Surname like '%$surname%'";

break;

}

}

// 以下各行是用来为查询授课时间的sql语句增加查询限制

if ($consulting_data) {

switch($consulting_data) {

case "subject":

$consulting_query

.= " and subjects.Subject like '%$subject%'";

break;

case "surname":

$consulting_query.= " and professors.Surname like '%$surname%'";

break;

}

}

// 处理与数据库的连接

function connect($tables, $data, $condition_passed) {

//

// put your password and username in next line

//

$db = mysql_pconnect("localhost","***","***");

// put your database name in next line

mysql_select_db("lanfranchi_co_uk",$db);

$sql = "SELECT $data FROM $tables WHERE $condition_passed order by professors.Surname";

$result = mysql_query($sql,$db);

return $result;

}

// 这个函数产生授课时间的wml代码

function consulting_print($consulting_result) {

global $file;

printf("n");

printf(" ＜P＞Receiving hours

n");

while ($myrow = mysql_fetch_row($consulting_result)) {

printf(" ＜P＞$myrow[0], $myrow[1]＜/P＞n");

printf(" ＜P＞$myrow[2]＜/P＞n");

printf(" ＜P＞$myrow[3]＜/P＞n");

printf(" ＜P＞$myrow[4]＜/P＞n");

printf(" ＜P＞$myrow[5]＜/P＞n");

}

printf("＜/CARD＞n");

}

// 这个函数产生测验时间表的wml代码

function print_exams($exams_result) {

global $file;

printf("＜CARD id='"card1"' title='"hours"'＞n");

printf(" ＜P＞Examinations hours

n");

while ($myrow = mysql_fetch_row($exams_result)) {

printf(" ＜P＞$myrow[2], $myrow[3]＜/P＞n");

printf(" ＜P＞$myrow[0]＜/P＞n");

printf(" ＜P＞$myrow[1]]＜/P＞n");

printf(" ＜P＞$myrow[4], $myrow[5]＜/P＞n");

printf(" ＜P＞$myrow[7]＜/P＞n");

printf(" ＜P＞$myrow[6]＜/P＞n");

}

printf("＜/CARD＞n");

}

// 检查你时候选择授课时间或者测验时间，连接数据库并且调用产生wml代码的函数

if ($consulting_data) {

$connection_result =

connect($consulting_tables, $consulting_columns, $consulting_query);

consulting_print($connection_result);

}

if ($exams_data) {

$connection_result =

connect($exams_tables, $ exams_columns, $ exams_query);

print_exams($connection_result);

}

printf("＜/WML＞n");

？>

　　好，完成了。你已经建立了首个基于MySQL 数据库的PHP/WML页面了，自己继续实践一下吧。

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