搜尋
首頁後端開發php教程将Session写入数据库，Session写入数据库_PHP教程

将Session写入数据库，Session写入数据库_PHP教程

WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB
WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB
Jul 13, 2016 am 09:57 AM
session

将Session写入数据库，Session写入数据库

使用session_set_save_handler()函数，将Session的内容写入数据库

<span>  1</span> <?<span>php
</span><span>  2</span>     <span>/*</span>
<span>  3</span> <span>    *@author    Fahy
</span><span>  4</span> <span>    *@link    http://home.cnblogs.com/u/HuangWj
</span><span>  5</span> <span>    *数据库为mysql，
</span><span>  6</span> <span>    *数据库名为session，表名为session，
</span><span>  7</span> <span>    *表中字段包括PHPSESSID,update_time,client_ip,data
</span><span>  8</span>     <span>*/</span>
<span>  9</span>     <span>class</span><span> Session{
</span><span> 10</span>         <span>private</span> <span>static</span> <span>$handler</span> = <span>null</span><span>;
</span><span> 11</span>         <span>private</span> <span>static</span> <span>$ip</span> = <span>null</span><span>;
</span><span> 12</span>         <span>private</span> <span>static</span> <span>$lifetime</span> = <span>null</span><span>;
</span><span> 13</span>         <span>private</span> <span>static</span> <span>$time</span> = <span>null</span><span>;
</span><span> 14</span>         
<span> 15</span>         <span>//</span><span>配置静态变量</span>
<span> 16</span>         <span>private</span> <span>static</span> <span>function</span> init(<span>$handler</span><span>){
</span><span> 17</span>             self::<span>$handler</span> = <span>$handler</span>;        <span>//</span><span>获取数据库资源</span>
<span> 18</span>             self::<span>$ip</span> = !<span>empty</span>(<span>$_SERVER</span>["REMOTE_ADDR"])? <span>$_SERVER</span>["REMOTE_ADDR"]:'unkonw';        <span>//</span><span>获取客户端ip</span>
<span> 19</span>             self::<span>$lifetime</span> = <span>ini_get</span>('session.gc_maxlifetime');        <span>//</span><span>获取session生命周期</span>
<span> 20</span>             self::<span>$time</span> = <span>time</span>();        <span>//</span><span>获取当前时间</span>
<span> 21</span> <span>        }
</span><span> 22</span>         <span>//</span><span>调用session_set_save_handler()函数并开启session</span>
<span> 23</span>         <span>static</span> <span>function</span> start(<span>$pdo</span><span>){
</span><span> 24</span>             self::init(<span>$pdo</span><span>);
</span><span> 25</span>             <span>session_set_save_handler</span><span>(
</span><span> 26</span>                 <span>array</span>(<span>__CLASS__</span>,'open'),
<span> 27</span>                 <span>array</span>(<span>__CLASS__</span>,'close'),
<span> 28</span>                 <span>array</span>(<span>__CLASS__</span>,'read'),
<span> 29</span>                 <span>array</span>(<span>__CLASS__</span>,'write'),
<span> 30</span>                 <span>array</span>(<span>__CLASS__</span>,'destroy'),
<span> 31</span>                 <span>array</span>(<span>__CLASS__</span>,'gc'<span>)
</span><span> 32</span> <span>            );
</span><span> 33</span>             <span>session_start</span><span>();
</span><span> 34</span> <span>        }
</span><span> 35</span>         
<span> 36</span>         <span>public</span> <span>static</span> <span>function</span> open(<span>$path</span>,<span>$name</span><span>){
</span><span> 37</span>             <span>return</span> <span>true</span><span>;
</span><span> 38</span> <span>        }
</span><span> 39</span>         <span>public</span> <span>static</span> <span>function</span><span> close(){
</span><span> 40</span>             <span>return</span> <span>true</span><span>;
</span><span> 41</span> <span>        }
</span><span> 42</span>         
<span> 43</span>         <span>//</span><span>查询数据库中的数据</span>
<span> 44</span>         <span>public</span> <span>static</span> <span>function</span> read(<span>$PHPSESSID</span><span>){
</span><span> 45</span>              <span>$sql</span> = "select PHPSESSID,update_time,client_ip,data from session where PHPSESSID=?"<span>;
</span><span> 46</span>              <span>$stmt</span> = self::<span>$handler</span>->prepare(<span>$sql</span><span>);
</span><span> 47</span>              <span>$stmt</span>->execute(<span>array</span>(<span>$PHPSESSID</span><span>));
</span><span> 48</span>              <span>if</span>(!<span>$result</span> = <span>$stmt</span>->fetch(PDO::<span>FETCH_ASSOC)){
</span><span> 49</span>                  <span>return</span> ''<span>;
</span><span> 50</span> <span>             }
</span><span> 51</span>              <span>if</span>(self::<span>$ip</span> == <span>$result</span>['client_ip'<span>]){
</span><span> 52</span>                  self::destroy(<span>$PHPSESSID</span><span>);
</span><span> 53</span>                  <span>return</span> ''<span>;
</span><span> 54</span> <span>             }
</span><span> 55</span>              <span>if</span>((<span>$result</span>['update_time']+self::<span>$lifetime</span>)<self::<span>$time</span><span>){
</span><span> 56</span>                  self::destroy(<span>$PHPSESSID</span><span>);
</span><span> 57</span>                  <span>return</span> ''<span>;
</span><span> 58</span> <span>             }
</span><span> 59</span>              <span>return</span> <span>$result</span>['data'<span>];
</span><span> 60</span> <span>        }
</span><span> 61</span>         <span>/*</span>
<span> 62</span> <span>         *首先查询该session是否存在数据，如果存在，则更新数据，如果不存在，则插入数据
</span><span> 63</span>          <span>*/</span>
<span> 64</span>         <span>//</span><span>将session写入数据库中，$data传入session中的keys和values数组</span>
<span> 65</span>         <span>public</span> <span>static</span> <span>function</span> write(<span>$PHPSESSID</span>,<span>$data</span><span>){
</span><span> 66</span>             <span>$sql</span> = "select PHPSESSID,update_time,client_ip,data from session where PHPSESSID=?"<span>;
</span><span> 67</span>              <span>$stmt</span> = self::<span>$handler</span>->prepare(<span>$sql</span><span>);
</span><span> 68</span>              <span>$stmt</span>->execute(<span>array</span>(<span>$PHPSESSID</span><span>));
</span><span> 69</span>              
<span> 70</span>              <span>if</span>(<span>$result</span>=<span>$stmt</span>->fetch(PDO::<span>FETCH_ASSOC)){                
</span><span> 71</span>                  <span>if</span>(<span>$result</span>['data'] != <span>$data</span> || self::<span>$time</span> > (<span>$result</span>['update_time']+30<span>)){
</span><span> 72</span>                      <span>$sql</span> = "update session set update_time=?,data=? where PHPSESSID = ?"<span>;
</span><span> 73</span>                      <span>$stmt</span> = self::<span>$handler</span>->prepare(<span>$sql</span><span>);
</span><span> 74</span>                      <span>$stmt</span>->execute(<span>array</span>(<span>$self</span>::<span>$time</span>,<span>$data</span>,<span>$PHPSESSID</span><span>));
</span><span> 75</span> <span>                }
</span><span> 76</span>              }<span>else</span><span>{
</span><span> 77</span>                  <span>if</span>(!<span>empty</span>(<span>$data</span><span>)){
</span><span> 78</span>                      <span>try</span><span>{
</span><span> 79</span>                          <span>$sql</span> = "insert into session(PHPSESSID,update_time,client_ip,data) values(?,?,?,?)"<span>;
</span><span> 80</span>                      }<span>catch</span>(PDOException <span>$e</span><span>){
</span><span> 81</span>                          <span>echo</span> <span>$e</span>-><span>getMessage();
</span><span> 82</span> <span>                     }
</span><span> 83</span>                      <span>$sth</span> = self::<span>$handler</span>->prepare(<span>$sql</span><span>);
</span><span> 84</span>                      <span>$sth</span>->execute(<span>array</span>(<span>$PHPSESSID</span>,self::<span>$time</span>,self::<span>$ip</span>,<span>$data</span><span>));
</span><span> 85</span> <span>                 }
</span><span> 86</span> <span>             }
</span><span> 87</span>              <span>return</span> <span>true</span><span>;
</span><span> 88</span> <span>        }
</span><span> 89</span>         
<span> 90</span>         <span>public</span> <span>static</span> <span>function</span> destroy(<span>$PHPSESSID</span><span>){
</span><span> 91</span>             <span>$sql</span> = "delete from session where PHPSESSID = ?"<span>;
</span><span> 92</span>             <span>$stmt</span> = self::<span>$handler</span>->prepare(<span>$sql</span><span>);
</span><span> 93</span>             <span>$stmt</span>->execute(<span>array</span>(<span>$PHPSESSID</span><span>));
</span><span> 94</span>             <span>return</span> <span>true</span><span>;
</span><span> 95</span> <span>        }
</span><span> 96</span>         <span>public</span> <span>static</span> <span>function</span> gc(<span>$lifetime</span><span>){
</span><span> 97</span>             <span>$sql</span> = "delete from session where update_time<?"<span>;
</span><span> 98</span>             <span>$stmt</span> = self::<span>$handler</span>->prepare(<span>$sql</span><span>);
</span><span> 99</span>             <span>$stmt</span>->execute(<span>array</span>(self::<span>$time</span>-<span>$lifetime</span><span>));
</span><span>100</span>             <span>return</span> <span>true</span><span>;
</span><span>101</span> <span>        }
</span><span>102</span> <span>    }
</span><span>103</span>     <span>//</span><span>使用PDO连接数据库</span>
<span>104</span>     <span>try</span><span>{
</span><span>105</span>         <span>$pdo</span> = <span>new</span> PDO("mysql:host=localhost;dbname=session","root","hwj193"<span>);
</span><span>106</span>     }<span>catch</span>(PDOException <span>$e</span><span>){
</span><span>107</span>         <span>echo</span> <span>$e</span>-><span>getMessage();
</span><span>108</span> <span>    }
</span><span>109</span>     <span>//</span><span>传递数据库资源</span>
<span>110</span>     Session::start(<span>$pdo</span>);

 

www.bkjia.comtruehttp://www.bkjia.com/PHPjc/980029.htmlTechArticle将Session写入数据库，Session写入数据库 使用session_set_save_handler()函数，将Session的内容写入数据库 1 ? php 2 /* 3 *@author Fahy 4 *@link http://home.cnb...
陳述
本文內容由網友自願投稿，版權歸原作者所有。本站不承擔相應的法律責任。如發現涉嫌抄襲或侵權的內容，請聯絡admin@php.cn
相關文章
超越炒作：評估當今PHP的角色超越炒作：評估當今PHP的角色Apr 12, 2025 am 12:17 AM

PHP在現代編程中仍然是一個強大且廣泛使用的工具，尤其在web開發領域。 1)PHP易用且與數據庫集成無縫，是許多開發者的首選。 2)它支持動態內容生成和麵向對象編程，適合快速創建和維護網站。 3)PHP的性能可以通過緩存和優化數據庫查詢來提升，其廣泛的社區和豐富生態系統使其在當今技術棧中仍具重要地位。

PHP中的弱參考是什麼？什麼時候有用？PHP中的弱參考是什麼？什麼時候有用？Apr 12, 2025 am 12:13 AM

在PHP中，弱引用是通過WeakReference類實現的，不會阻止垃圾回收器回收對象。弱引用適用於緩存系統和事件監聽器等場景，需注意其不能保證對象存活，且垃圾回收可能延遲。

解釋PHP中的__ Invoke Magic方法。解釋PHP中的__ Invoke Magic方法。Apr 12, 2025 am 12:07 AM

\_\_invoke方法允許對象像函數一樣被調用。 1.定義\_\_invoke方法使對象可被調用。 2.使用$obj(...)語法時，PHP會執行\_\_invoke方法。 3.適用於日誌記錄和計算器等場景，提高代碼靈活性和可讀性。

解釋PHP 8.1中的纖維以進行並發。解釋PHP 8.1中的纖維以進行並發。Apr 12, 2025 am 12:05 AM

Fibers在PHP8.1中引入，提升了並發處理能力。 1)Fibers是一種輕量級的並發模型，類似於協程。 2)它們允許開發者手動控制任務的執行流，適合處理I/O密集型任務。 3)使用Fibers可以編寫更高效、響應性更強的代碼。

PHP社區：資源，支持和發展PHP社區：資源，支持和發展Apr 12, 2025 am 12:04 AM

PHP社區提供了豐富的資源和支持，幫助開發者成長。 1)資源包括官方文檔、教程、博客和開源項目如Laravel和Symfony。 2)支持可以通過StackOverflow、Reddit和Slack頻道獲得。 3)開發動態可以通過關注RFC了解。 4)融入社區可以通過積極參與、貢獻代碼和學習分享來實現。

PHP與Python：了解差異PHP與Python：了解差異Apr 11, 2025 am 12:15 AM

PHP和Python各有優勢，選擇應基於項目需求。 1.PHP適合web開發，語法簡單，執行效率高。 2.Python適用於數據科學和機器學習，語法簡潔，庫豐富。

php：死亡還是簡單地適應？php：死亡還是簡單地適應？Apr 11, 2025 am 12:13 AM

PHP不是在消亡，而是在不斷適應和進化。 1)PHP從1994年起經歷多次版本迭代，適應新技術趨勢。 2)目前廣泛應用於電子商務、內容管理系統等領域。 3)PHP8引入JIT編譯器等功能，提升性能和現代化。 4)使用OPcache和遵循PSR-12標準可優化性能和代碼質量。

PHP的未來：改編和創新PHP的未來：改編和創新Apr 11, 2025 am 12:01 AM

PHP的未來將通過適應新技術趨勢和引入創新特性來實現：1)適應云計算、容器化和微服務架構，支持Docker和Kubernetes；2)引入JIT編譯器和枚舉類型，提升性能和數據處理效率；3)持續優化性能和推廣最佳實踐。

See all articles

熱AI工具

Undresser.AI Undress

Undresser.AI Undress

人工智慧驅動的應用程序，用於創建逼真的裸體照片

AI Clothes Remover

AI Clothes Remover

用於從照片中去除衣服的線上人工智慧工具。

Undress AI Tool

Undress AI Tool

免費脫衣圖片

Clothoff.io

Clothoff.io

AI脫衣器

AI Hentai Generator

AI Hentai Generator

免費產生 AI 無盡。

顯示更多

熱門文章

R.E.P.O.能量晶體解釋及其做什麼（黃色晶體）
3 週前By尊渡假赌尊渡假赌尊渡假赌
R.E.P.O.最佳圖形設置
3 週前By尊渡假赌尊渡假赌尊渡假赌
刺客信條陰影：貝殼謎語解決方案
2 週前ByDDD
R.E.P.O.如果您聽不到任何人，如何修復音頻
3 週前By尊渡假赌尊渡假赌尊渡假赌
WWE 2K25：如何解鎖Myrise中的所有內容
4 週前By尊渡假赌尊渡假赌尊渡假赌
顯示更多

熱工具

Dreamweaver CS6

Dreamweaver CS6

視覺化網頁開發工具

SecLists

SecLists

SecLists是最終安全測試人員的伙伴。它是一個包含各種類型清單的集合，這些清單在安全評估過程中經常使用，而且都在一個地方。 SecLists透過方便地提供安全測試人員可能需要的所有列表，幫助提高安全測試的效率和生產力。清單類型包括使用者名稱、密碼、URL、模糊測試有效載荷、敏感資料模式、Web shell等等。測試人員只需將此儲存庫拉到新的測試機上，他就可以存取所需的每種類型的清單。

PhpStorm Mac 版本

PhpStorm Mac 版本

最新（2018.2.1 ）專業的PHP整合開發工具

ZendStudio 13.5.1 Mac

ZendStudio 13.5.1 Mac

強大的PHP整合開發環境

SublimeText3 Linux新版

SublimeText3 Linux新版

SublimeText3 Linux最新版

顯示更多

熱門話題

gmail信箱登陸入口在哪裡
7470
15
CakePHP 教程
1377
52
steam的賬戶名稱是什麼格式
77
11
win11激活密鑰永久
48
19
NYT連接提示和答案
19
29
顯示更多