Php 更新sql语句不工作

Php 更新sql语句不工作,php,mysql,sql-update,Php,Mysql,Sql Update,我是编程新手。我尝试更新sql,但它不起作用。结果显示成功警报出现,但信息未更新 这是我的html代码。我在用tinymce <?php include("db.php"); doDB(); $id = $_GET['id']; $get_contents_sql = "SELECT * FROM service WHERE service_id='$id'"; $get_contents_res = mysqli_query($mysqli, $get_conte

我是编程新手。我尝试更新sql,但它不起作用。结果显示成功警报出现,但信息未更新

这是我的html代码。我在用tinymce

<?php
  include("db.php");
  doDB();

  $id = $_GET['id'];

  $get_contents_sql = "SELECT * FROM service WHERE service_id='$id'";
  $get_contents_res = mysqli_query($mysqli, $get_contents_sql)
  or die(mysqli_error($mysqli));

  if($get_contents_res = mysqli_query($mysqli, $get_contents_sql)){
    //fetch associative array
    while ($row = mysqli_fetch_assoc($get_contents_res)) {   
      $contents = $row['contents'];
      $service_name = $row['service_name'];
      $service_id = $row['service_id'];

      //Draw the results
      $fill_block = html_entity_decode($contents);
    }
  }

  //close connection to MySQL
  mysqli_close($mysqli);
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Full featured example</title>
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<!-- TinyMCE -->
<script type="text/javascript" src="jscripts/tiny_mce/tiny_mce.js">
    </script>
<script type="text/javascript">
    tinyMCE.init({
        // General options
        mode : "textareas",
        theme : "advanced",
        plugins : "autolink,lists,pagebreak,style,layer,table,save,advhr,advimage,advlink,emotions,iespell,inlinepopups,insertdatetime,preview,media,searchreplace,print,contextmenu,paste,directionality,fullscreen,noneditable,visualchars,nonbreaking,xhtmlxtras,template,wordcount,advlist,autosave,visualblocks",

        // Theme options
        theme_advanced_buttons1 : "save,newdocument,|,bold,italic,underline,strikethrough,|,justifyleft,justifycenter,justifyright,justifyfull,styleselect,formatselect,fontselect,fontsizeselect",
        theme_advanced_buttons2 : "cut,copy,paste,pastetext,pasteword,|,search,replace,|,bullist,numlist,|,outdent,indent,blockquote,|,undo,redo,|,link,unlink,anchor,image,cleanup,help,code,|,insertdate,inserttime,preview,|,forecolor,backcolor",
        theme_advanced_buttons3 : "tablecontrols,|,hr,removeformat,visualaid,|,sub,sup,|,charmap,emotions,iespell,media,advhr,|,print,|,ltr,rtl,|,fullscreen",
        theme_advanced_buttons4 : "insertlayer,moveforward,movebackward,absolute,|,styleprops,|,cite,abbr,acronym,del,ins,attribs,|,visualchars,nonbreaking,template,pagebreak,restoredraft,visualblocks",
        theme_advanced_toolbar_location : "top",
        theme_advanced_toolbar_align : "left",
        theme_advanced_statusbar_location : "bottom",
        theme_advanced_resizing : true,

        // Example content CSS (should be your site CSS)
        content_css : "examples/css/content.css",

        // Drop lists for link/image/media/template dialogs
        template_external_list_url : "examples/lists/template_list.js",
        external_link_list_url : "examples/lists/link_list.js",
        external_image_list_url : "examples/lists/image_list.js",
        media_external_list_url : "examples/lists/media_list.js",

        // Style formats
        style_formats : [
            {title : 'Bold text', inline : 'b'},
            {title : 'Red text', inline : 'span', styles : {color : '#ff0000'}},
            {title : 'Red header', block : 'h1', styles : {color : '#ff0000'}},
            {title : 'Example 1', inline : 'span', classes : 'example1'},
            {title : 'Example 2', inline : 'span', classes : 'example2'},
            {title : 'Table styles'},
            {title : 'Table row 1', selector : 'tr', classes : 'tablerow1'}
        ],

        // Replace values for the template plugin
        template_replace_values : {
            username : "Some User",
            staffid : "991234"
        }
    });
</script>
<!-- /TinyMCE -->

</head>
<body role="application">

<form method="post" action="updateserviceexe.php">
 <p>Service name:
  <input name="txtservicename" type="text" value="<?php echo $service_name; ?>" />

  <!-- Gets replaced with TinyMCE, remember HTML in a textarea should be 
    encoded -->
  <input type="hidden" name="hidid" value="<? echo $row['service_id'];?>" />
 </p>
    <div>

        <!-- Gets replaced with TinyMCE, remember HTML in a textarea should be 
    encoded -->
<div>
  <textarea id="elm1" name="elm1" rows="15" cols="80" style="width:80%">
    <?php echo $fill_block; ?>
  </textarea>
</div>

        <!-- Some integration calls -->
        <a href="javascript:;" onclick="tinyMCE.get('elm1').show();return false;">[Show]</a>
        <a href="javascript:;" onclick="tinyMCE.get('elm1').hide();return false;">[Hide]</a>
        <a href="javascript:;" onclick="tinyMCE.get('elm1').execCommand('Bold');return false;">[Bold]</a>
        <a href="javascript:;" onclick="alert(tinyMCE.get('elm1').getContent());return false;">[Get contents]</a>
        <a href="javascript:;" onclick="alert(tinyMCE.get('elm1').selection.getContent());return false;">[Get selected HTML]</a>
        <a href="javascript:;" onclick="alert(tinyMCE.get('elm1').selection.getContent({format : 'text'}));return false;">[Get selected text]</a>
        <a href="javascript:;" onclick="alert(tinyMCE.get('elm1').selection.getNode().nodeName);return false;">[Get selected element]</a>
        <a href="javascript:;" onclick="tinyMCE.execCommand('mceInsertContent',false,'<b>Hello world!!</b>');return false;">[Insert HTML]</a>
        <a href="javascript:;" onclick="tinyMCE.execCommand('mceReplaceContent',false,'<b>{$selection}</b>');return false;">[Replace selection]</a>

        <br />
        <input type="submit" name="save" value="Submit" />
        <input type="reset" name="reset" value="Reset" />
    </div>
</form>
<br>
<script type="text/javascript">
if (document.location.protocol == 'file:') {
    alert("The examples might not work properly on the local file system due to security settings in your browser. Please use a real webserver.");
}
</script>
</body>
</html>

全功能示例
tinyMCE.init({
//一般选择
模式:“文本区域”,
主题:“高级”,
插件:“自动链接、列表、分页符、样式、图层、表格、保存、advhr、advimage、advlink、emotions、iespell、inlinepopups、insertdatetime、预览、媒体、搜索替换、打印、上下文菜单、粘贴、方向性、全屏、不可编辑、可视光标、不可中断、xhtmlxtras、模板、字数、advlist、自动保存、可视块”,
//主题选项
主题_高级_按钮1:“保存、新建文档、|、粗体、斜体、下划线、删除线、|、左对齐、居中对齐、右对齐、全对齐、样式选择、格式选择、字体选择、字体大小选择”,
主题高级按钮2:“剪切、复制、粘贴、粘贴文本、粘贴文字、搜索、替换、布利斯特、numlist、outdent、indent、blockquote、|、撤消、重做、链接、取消链接、锚定、图像、清理、帮助、代码、插入日期、插入时间、预览、前景色、后景色”,
主题|高级|按钮3:“表格控件,|,hr,removeformat,visualaid,|,sub,sup,|,charmap,情感,易趣,媒体,advhr,|,打印,|,ltr,rtl,|,全屏”,
theme_advanced_按钮4:“插入层、向前移动、向后移动、绝对、|、styleprops、|、引用、缩写、首字母缩写、del、ins、attribs、|、visualchars、非中断、模板、分页符、restoredraft、visualblocks”,
主题\高级\工具栏\位置:“顶部”,
主题\高级\工具栏\对齐:“左”,
主题\高级\状态栏\位置:“底部”,
主题\u高级\u大小调整:正确,
//示例内容CSS(应该是您的网站CSS)
content\u css:“examples/css/content.css”,
//链接/图像/媒体/模板对话框的下拉列表
template_external_list_url:“examples/list/template_list.js”,
外部链接列表url:“examples/list/link\u list.js”,
外部_image_list_url:“examples/list/image_list.js”,
media\u external\u list\u url:“examples/list/media\u list.js”,
//样式格式
样式和格式:[
{标题:“粗体文本”,内联:“b'},
{标题:'Red text',内联:'span',样式:{color:'#ff0000'}},
{title:'Red header',block:'h1',style:{color:'#ff0000'}},
{title:'example1',inline:'span',classes:'example1'},
{title:'example2',inline:'span',classes:'example2'},
{title:'表格样式'},
{title:'Table row 1',选择器:'tr',类:'tablerow 1'}
],
//替换模板插件的值
模板替换值:{
用户名:“某个用户”,
标记:“991234”
}
});
服务名称:

更改update语句,如下所示-

"UPDATE service SET 
               service_name = $servicename,
               contents = $contents
               WHERE service_id = $id"
在这里,我删除了围绕变量的单引号

注意:


请停止使用MySQL\u query()
。从PHP5.5.0开始,此扩展已被弃用,将来将被删除。相反,应该使用MySQLi或PDO_MySQL扩展。

是否有任何错误?没有。它只显示空白页。有点困在那里2天了你已经验证过你的数据库信息是否更新了吗?是的。信息没有更新。我认为我的更新sql是错误的。但我不太确定。已经检查了字段名和所有内容。但是仍然无法更新$updateuser以检查预期的查询,然后在mysql上运行它,还请重新验证连接和dbhi..我已经按照您的方式完成了,但仍然无法更新信息..感谢您的帮助您的更新语句现在是正确的(如果您删除了单引号)。如果您的表仍然没有更新(并且没有显示任何错误),我建议您打印
$id
并检查表
service
中是否存在该
service\u id
的任何记录好的..我在isset出错..调用了错误的名称..然后我尝试使用带有单引号的代码..结果我成功地获得了警报,但信息仍然没有更新..当我使用您的代码时,它显示错误您在SQL语法中有一个错误;检查与MySQL服务器版本对应的手册,以了解第3行“test22 WHERE service_id=””附近要使用的正确语法
"UPDATE service SET 
               service_name = $servicename,
               contents = $contents
               WHERE service_id = $id"