How to use php to dynamically generate xml files and extract data from xml files into html

Source: Internet
Author: User
Use php to dynamically generate xml files and extract data from xml files into html. This stuff took me a day... However, at the end, I found that I could not achieve the effect I imagined... It's a pity... It seems that PHP still needs to strengthen XML... If

This stuff took me a day... However, at the end, I found that I could not achieve the effect I imagined... It's a pity... It seems that PHP still needs to strengthen XML... If anyone has research on this. Thank you for writing to us...

Create a table first:
Create table books (
Bookid int (4) not null auto_increment,
Bookname varchar (100) not null,
Bookauth varchar (50) not null,
Bookpublisher varchar (50) not null,
Bookpubdate datetime not null,
Bookurl varchar (50) not null,
KEY bookid (bookid ),
);

Then... This section is the source code for converting data from MYSQL to XML:
$ Connect_id = mysql_connect ("localhost", "root ","");
Mysql_select_db ("bbs", $ connect_id );
$ Query = "select * from books order by bookid ";
$ Rs = mysql_query ($ query, $ connect_id );
$ Numfields = mysql_num_fields ($ rs );
$ XMLfile =" N ";
$ XMLfile. =" N ";

While ($ row = mysql_fetch_array ($ rs )){
For ($ I = 0; $ I <$ numfields; $ I ){
$ Fieldname = mysql_field_name ($ rs, $ I );
$ XMLfile. = "<". $ fieldname. ">". $ row [$ I]." N ";
}
}
Mysql_free_result ($ rs );
Mysql_close ($ connect_id );
$ XMLfile. ="N ";
$ Fp = fopen ("XMLdoc/XMLdoc. XML", "w ");
If (fwrite ($ fp, $ XMLfile )){
Echo "file written! ";
}
Else {
Echo "failed to write file! ";
}
?>

This section is the source code for converting data from XML into HTML...
Class XML {
Var $ parser;

Function XML (){
$ This-> parser = XML_parser_create ();
XML_set_object ($ this-> parser, & $ this );
XML_set_element_handler ($ this-> parser, "tag_on", "tag_off ");
XML_set_character_data_handler ($ this-> parser, "cdata ");
}

Function parse ($ data ){
XML_parse ($ this-> parser, $ data );
}

Function tag_on ($ parser, $ tag, $ attributes ){
If (XML_get_current_line_number ($ parser) = 2 ){
Echo"". $ Tag ."";
}
Else {
Switch (XML_get_current_line_number ($ parser)-2) % 6 ){
Case 0:
Echo"Download";
Break;
Case 1:
Echo"ID number";
Break;
Case 2:
Echo"Title";
Break;
Case 3:
Echo"Author";
Break;
Case 4:
Echo"Press";
Break;
Case 5:
Echo"Publication date";
Break;
}
}
}

Function cdata ($ parser, $ cdata ){
Echo $ cdata;
}

Function tag_off ($ parser, $ tag ){
Echo "n ";
}
}

$ XML_parser = new XML ();
$ XMLfilename = "XMLdoc/XMLdoc. XML ";
$ Fp = fopen ($ XMLfilename, "r ");
$ XMLdata = fread ($ fp, filesize ($ XMLfilename ));
?>
Book Information




$ XML_parser-> parse ($ XMLdata );?>

Actually, you can see that .. This example is a failure... Because it is not very effective .. You cannot get what you want... Alas... Bitter ....

Bytes... However, at the end, I found that I could not achieve the effect I imagined... It's a pity... It seems that PHP still needs to strengthen XML... If any...

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