php 在同一个表单中添加和修改数据 二_php

[/code]</p> <p> <input type="file" name="file" /></p> <p> <input type="submit" name="submit" value="submit" /></p> </form> <p>我在后台进行添加操作.</p> <p>首先我们再开始接收数据.如title,content的内容.判断内容是否为空,为空直接返回.</p> <p>如果有我们需要判断一下是否有附件,如果有附件的话,我们先通过程序将其移动到项目的uploads文件夹中,</p> <p>如果失败的话,我们就直接返回了.</p> <p>好,上程序.</p> <p>if(IS_POST){</p> <p> $title = $_POST[‘title’];</p> <p> $content = $_POST[‘content’];</p> <p> if($title&&$content){</p><div><div class="_t33rkthes8f"></div><script type="text/javascript">(window.slotbydup = window.slotbydup || []).push({id: "u6795179",container: "_t33rkthes8f",async: true});</script></div> <p> if($_FILES[‘file’][‘name’])</p> <p> //开始对提交的附件进行处理.</p> <p> 如果成功,则可以得到我们附件的名称和上传的地址等信息,看你需要什么</p> <p> 如果失败的话</p> <p> 返回错误.</p> <p> }</p> <p> $arr = array(</p> <p> ‘title’ => $title,</p> <p> ‘content’ => $content;</p> <p> ‘filename’ => ///</p> <p> ‘filepath’ => ///</p> <p> );</p> <p> $flag = 进行插入操作..</p> <p> if($flag) $str = “成功”;</p> <p> else $str = “失败”;</p> <p> $this->success(“添加”.$str,//跳到列表路由中.);</p> <p> }</p> <p>}//end of post.</p> <p> //下面是模板内容….</p> <p> </p> <p> </p> <p>现在我们如果是要修改该内容的话.</p> <p>我想到了一个方法..</p> <p>在页面中,如果有附件,我们显示图片的名称.如果需要修改,我们就将file的提交框显示出来..</p> <p>我只写关键部分了哈..</p> <p><if condition="$result[filename]"></p> <p> <input type="text" name="" value="{$result.filename}" readonly /></p> <p> <input type="file" name="file" style="display:none"/></p> <p><else/></p> <p> <input type="file" name="file" /></p> <p></if></p> <p><script type=”text/<a href="https://www.gaodaima.com/go.html?url=http://www.gaodaima.com/tag/javascript" title="JavaScript" rel="nofollow" target="_blank">JavaScript</a>“></p> <p>//这里我们使用<a href="https://www.gaodaima.com/go.html?url=http://www.gaodaima.com/tag/jquery" title="jquery" rel="nofollow" target="_blank">jquery</a>来实现.</p> <p>function show_file(o){</p> <p>$this = $(o);</p> <p> $this.hide();</p> <p> $this.next().show();</p> <p> }</p> <p></script></p> <p>搞定了…这样在前台还是比较美观的吧…</p> <p>后台的逻辑有点复杂了..</p> <p>首先你要判断是否有附件,如果没有,你就不能往<a href="https://www.gaodaima.com/go.html?url=http://www.gaodaima.com/tag/%e6%95%b0%e6%8d%ae%e5%ba%93" title="数据库" rel="nofollow" target="_blank">数据库</a>里面写入空值,如果<a href="https://www.gaodaima.com/tag/%e6%95%b0%e6%8d%ae%e5%ba%93" title="查看更多关于数据库的文章" target="_blank">数据库</a>里本来有,现在用户没有修改附件,如果统一的往数据库里面写内容.则会覆盖..</p> <p>我说下我的思路.</p> <p>首先还是判断title,content是否为空.</p> <p>如果不为空,判断是否有附件,如果有附件,我们就进行统一的接收操作.</p> <p>if(IS_POST){</p> <p> $title = $_POST[‘title’];</p> <p> $content = $_POST[‘content’];</p> <p> if($title&&$content){</p> <p> //这里我们先定义一个数组..</p> <p> $data = array();</p> <p> if($_FILES[‘file’][‘name’])</p> <p> //开始对提交的附件进行处理.</p> <p> 如果成功,则可以得到我们附件的名称和上传的地址等信息,看你需要什么</p> <p> 如果失败的话</p> <p> 返回错误.</p> <p> 成功</p> <p> $data[‘filename’] = //文件名</p> <p> $data[‘filepath’] = //文件路径.</p> <p> }</p> <p> $arr = array(</p> <p> ‘title’ => $title,</p> <p> ‘content’ => $content</p> <p> );</p> <p>if(!$_POST[‘id’]){</p> <p> $flag = 进行插入操作..</p> <p> $type = “添加”;</p> <p>}else{</p> <p> $flag = 进行修改操作.</p> <p> $type = “修改”;</p> <p>}</p> <p> if($flag) $str = “成功”;</p> <p> else $str = “失败”;</p> <p> $this->success($type.$str,//跳到列表路由中.);</p> <p> }</p> <p>}//end of post.</p> <p> //下面是模板内容….</p> <p> </p> <p> </p> <h3 style="display:none;"><a href="https://www.gaodaima.com/go.html?url=http://www.gaodaima.com/51250" rel="nofollow">http://www.gaodaima.com/51250</a>.<a href="https://www.gaodaima.com/go.html?url=http://www.gaodaima.com/tag/html" title="html" rel="nofollow" target="_blank">html</a><a href="https://www.gaodaima.com/go.html?url=http://www.gaodaima.com/tag/php" title="php" rel="nofollow" target="_blank">php</a> 在同一个表单中添加和修改数据 二_<a href="https://www.gaodaima.com/tag/php" title="查看更多关于php的文章" target="_blank">php</a></h3> <p>欢迎大家阅读<span style='color:red;'>《php 在同一个表单中添加和修改数据 二_php》</span>,跪求各位点评,若觉得好的话请收藏本文，by <strong>搞代码</strong></p> <hr /><div class="open-message">搞代码网（<a href="www.gaodaima.com" target="_blank" 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