1 <?php
isset($_REQUEST['form_single_page_num']) && !empty($_REQUEST['form_single_page_num']) ? $single_page_num = $_REQUEST['form_single_page_num'] : $single_page_num = 50;
isset($_REQUEST['form_go_page_num']) && !empty($_REQUEST['form_go_page_num']) ? $go_page_num = $_REQUEST['form_go_page_num'] : $go_page_num = 1; //setcookie('go_page_num',$go_page_num, time()+60);
$data_sum = 9688;
$db = gen_data($data_sum);
$page_sum = ceil($data_sum / $single_page_num);
$fetch_data = fetch_data($single_page_num, $go_page_num, $db);
$fetch_data = fetch_data($single_page_num, $go_page_num, $db); function fetch_data($single_page_num, $go_page_num, $db)
{
global $page_sum;
global $data_sum;
$fetch_data = array();
if ($go_page_num == $page_sum) {
$end = $data_sum;
$start = $single_page_num * ($go_page_num - 1);
} else {
$end = $single_page_num * $go_page_num;
$start = $end - $single_page_num;
} for ($w = $start; $w < $end; $w++) {
array_push($fetch_data, $db[$w]);
}
return $fetch_data;
} function gen_data($data_sum)
{
$gen = array();
for ($w = 0; $w < $data_sum; $w++) {
$tmp = $w + 1;
$gen[$w]['rand'] = 'rand' . rand(123, 987);
$gen[$w]['w'] = 'w' . $tmp;
}
return $gen;
} ?> <!doctype html>
<html>
<head>
<meta charset="UTF-8">
<title>pagination-diy</title>
<!-- <script src="jquery-3.1.0.min.js"></script>-->
</head>
<body>
<div style="margin: 0 auto;text-align: center">
<div id="page_area" class="pagination">
</div>
</div>
<form method="post" id="javascript_page">
<input type="hidden" name="form_single_page_num">
<input type="hidden" name="form_go_page_num" id="form_go_page_num">
</form>
<? foreach ($fetch_data as $one) {
echo $one['rand'] . '---' . $one['w'] . '<br>';
} ?> </body>
</html> <style type="text/css">
.page {
display: inline;
padding: 0.3em;
border: 0.1em solid deepskyblue;
border-radius: 0.3em;
margin: 0.31em;
}
</style> <script>
var page_sum = <?=$page_sum?>, go_page_num =<?=$go_page_num?>;
var id_page_area = document.getElementById('page_area');
id_page_area.innerHTML = gen_pagelist();
console.log(go_page_num);
document.getElementById('<?='p'.$go_page_num?>').style.color = "red"; function gen_pagelist() {
var pagelist = '<div class="page">共<?= $page_sum ?>页</div> '
var page_num_remain = page_sum - go_page_num;
if (page_sum < 7) {
switch (page_sum) {
case 0 :
case 1 :
break;
case 2 :
pagelist += '<div class="page" onclick="w()" id="p1">1</div> <div class="page" onclick="w()" id="p2">2</div> ';
break;
case 3 :
pagelist += '<div class="page" onclick="w()" id="p1">1</div> <div class="page" onclick="w()" id="p2">2</div> <div class="page" onclick="w()" id="p3">3</div> ';
break;
case 4 :
pagelist += '<div class="page" onclick="w()" id="p1">1</div> <div class="page" onclick="w()" id="p2">2</div> <div class="page" onclick="w()" id="p3">3</div> <div class="page" onclick="w()" id="p4">4</div> ';
break;
case 5 :
pagelist += '<div class="page" onclick="w()" id="p1">1</div> <div class="page" onclick="w()" id="p2">2</div> <div class="page" onclick="w()" id="p3">3</div> <div class="page" onclick="w()" id="p4">4</div> <div class="page" onclick="w()" id="p5">5</div> ';
break;
case 6 :
pagelist += '<div class="page" onclick="w()" id="p1">1</div> <div class="page" onclick="w()" id="p2">2</div> <div class="page" onclick="w()" id="p3">3</div> <div class="page" onclick="w()" id="p4">4</div> <div class="page" onclick="w()" id="p5">5</div> <div class="page" onclick="w()" id="p6">6</div> ';
break;
case 7 :
pagelist += '<div class="page" onclick="w()" id="p1">1</div> <div class="page" onclick="w()" id="p2">2</div> <div class="page" onclick="w()" id="p3">3</div> <div class="page" onclick="w()" id="p4">4</div> <div class="page" onclick="w()" id="p5">5</div> <div class="page" onclick="w()" id="p6">6</div> <div class="page" onclick="w()" id="p7">7</div> ';
break;
}
} else {
pagelist += '<div class="page" onclick="w()" id="page_start">首页</div> ';
if (page_num_remain < 3) {
var tmp = page_sum - 6;
pagelist += '<div class="page" onclick="w()" id="p' + tmp + '">' + tmp + '</div> ' +
'<div class="page" onclick="w()" id="p' + (++tmp) + '">' + tmp + '</div> ' +
'<div class="page" onclick="w()" id="p' + (++tmp) + '">' + tmp + '</div> ' +
'<div class="page" onclick="w()" id="p' + (++tmp) + '">' + tmp + '</div> ' +
'<div class="page" onclick="w()" id="p' + (++tmp) + '">' + tmp + '</div> ' +
'<div class="page" onclick="w()" id="p' + (++tmp) + '">' + tmp + '</div> ' +
'<div class="page" onclick="w()" id="p' + (++tmp) + '">' + tmp + '</div> ';
} else {
if (go_page_num < 4) {
pagelist += '<div class="page" onclick="w()" id="p1">1</div> <div class="page" onclick="w()" id="p2">2</div> <div class="page" onclick="w()" id="p3">3</div> <div class="page" onclick="w()" id="p4">4</div> <div class="page" onclick="w()" id="p5">5</div> <div class="page" onclick="w()" id="p6">6</div> <div class="page" onclick="w()" id="p7">7</div> '; } else {
var tmp = go_page_num - 3;
pagelist += '<div class="page" onclick="w()" id="p' + tmp + '">' + tmp + '</div> ' +
'<div class="page" onclick="w()" id="p' + (++tmp) + '">' + tmp + '</div> ' +
'<div class="page" onclick="w()" id="p' + (++tmp) + '">' + tmp + '</div> ' +
'<div class="page" onclick="w()" id="p' + go_page_num + '">' + go_page_num + '</div> ' +
'<div class="page" onclick="w()" id="p' + (++go_page_num) + '">' + go_page_num + '</div> ' +
'<div class="page" onclick="w()" id="p' + (++go_page_num) + '">' + go_page_num + '</div> ' +
'<div class="page" onclick="w()" id="p' + (++go_page_num) + '">' + go_page_num + '</div> ';
} }
pagelist += '<div class="page" onclick="w()" id="page_end">尾页</div> '; }
return pagelist;
} function w() {
id_page_area.innerHTML = '';
var id = event.target.id;
switch (id) {
case 'page_start':
go_page_num = 1;
break;
case 'page_end':
go_page_num = <?=$page_sum?>;
break;
default :
go_page_num = id.substr(1);
break;
}
document.getElementById('form_go_page_num').value = go_page_num;
id_page_area.innerHTML = gen_pagelist();
document.getElementById('javascript_page').submit();
}
</script>