PHP Chinese data page (Message Book page) _php Foundation

In the mysq to introduce a lot of pages, and text data table-style page of the introduction of little, here I simply say the page

Mainly introduce the following page-flipping ideas
1, the page of the message book
2, the Text forum page

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The page of the message book:
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This page in the text datasheet is the easiest page to flip, which means

Golbal file
Data.dat---Note FILE use
User.dat---Forum File use
Data.dat
_______________________________________________________________________
[1] [postuser] [TITLE] [MEM] [posttime] [IP]
[2] [postuser] [TITLE] [MEM] [posttime] [IP]
[3] [postuser] [TITLE] [MEM] [posttime] [IP]
[4] [postuser] [TITLE] [MEM] [posttime] [IP]
[5] [postuser] [TITLE] [MEM] [posttime] [IP]

Description
of which [1,2,3,4,5 ...] I added it myself, mainly for the better understanding

index.php Source:.

__________________________________________________

---====bof====---
?
$file = "Data.dat"; Data files
if (File_exits ($file)) {//fault tolerant processing to prevent the existence of no data files
$FP =fopen ($file, "w+");
Fclose ($FP);
Unset ($FP);
}
$listnumber = 20; Show number of bars per page
$fp = file ($file); reading data to content
$number = count ($fp); Calculate the total amount of data
$pagenumber = Floor ($number/$listnumber) +1;
if ($number <1) {
Print "Temporarily no record, welcome message";
/*+--------------------------------+
| print form form or connect to table here but |
| URL, |
+--------------------------------+*/
}else{
if (Empty ($_post["page")) {//This paragraph if ... ELSE ... is intended to be compatible with the default settings of php4.20 to prevent invalid global variables from being written
$page = 0; Because it is read from the data text, saved in the array, there is an O subscript
}else{
$page = $_post["page"]
}

if ($page <0 | | | $page >pagenumber) {//error handling, when page parameters jump out of the total page or less than the first page (0), will return to the top
$page = 0;
}

$startnote = $page * $listnumber; Start record position
$endnote = $startnote + $listnumber; End Record Location

For ($int _a= $startnote; $int _a< $endnote; $int _a++) {//Sort display like ASC mode

Pirnt "<table>"

For ($int _a= $endnote; $int _a>= $startnote; $int _a--) {//Sort displays similar desc mode
$info =explode ("T", $fp [$int-a]); Cutting data to obtain detailed data for each record I'm using a TAB key to split
Print <tr><td> users: $info [1] title $info[2] Content: $info [3] Published: $info [4] IP: $info [5];
}

$prevpage = $page-1; Page number of previous page
$nextpage = $page +1; Page number of the next page

Print "<tr><td>
<a href=\ "$_server[" php_self "]?page=0\" > Home </a>
<a href=\ "$_server[" php_self "]?page= $prevpage \" > Prev </a>
<a href=\ "$_server[" php_self "]?page= $nextpage \" > next page </a>
<a href=\ "$_server[" php_self "]?page= $pagenumber \" > End </a>
</table> "; Here you can add the page to the test directly here, that gives others to see is comfortable, but the effect is the same
For example: There may be 20 pages appearing <a href= "index.php?page=21" > next page </a> or <a href= "Index.php?page=-1" >
}
?>
---====eof====---


Write hastily, the other in the middle there are many because of the use of PHP4.20 so change a bit, for example, Php_self has adopted _server["php_self"] and so on