建立动态的WML站点(三)
建立动态的WML站点(三),建立动态的WML站点(三)
<?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