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php - 更新sql语句不起作用

转载 作者:行者123 更新时间:2023-11-29 23:23:06 29 4
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我是编程新手。我尝试更新 sql 但它不起作用。结果显示成功提示出来了,但是信息没有更新。

这是我的 html 代码。我正在使用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>

这是我的 php 代码

<?php
//session_start();
include('../conn/openconn.php');
if(isset($_POST['save'])) {

$id = $_POST['hidid'];
$servicename = $_POST['txtservicename'];
$contents = $_POST['elm1'];

$updateuser = "UPDATE service SET
service_name = '$servicename',
contents = '$contents'
WHERE service_id = '$id'";
mysql_query($updateuser) or die (mysql_error());

header("Location:viewserviceupdate.php?alert=Success");
}

?>

最佳答案

更改更新语句如下 -

"UPDATE service SET 
service_name = $servicename,
contents = $contents
WHERE service_id = $id"

这里我删除了变量周围的单引号。

注意:

请停止使用MySQL_query()。该扩展自 PHP 5.5.0 起已弃用,并将在将来删除。相反,应使用 MySQLi 或 PDO_MySQL 扩展。

关于php - 更新sql语句不起作用,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/27163628/

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