我在一个类中定义了三个按钮(创建、编辑、删除)和三个独立的函数。
当我点击创建时，应该调用创建函数，编辑和删除也是如此。
一切都工作得很好，到这里，但当我点击提交在任何选项(创建/编辑/删除)，页面被重定向显示第一个div "cs_content"所有的时间。
我的要求是:直到数据被存储到数据库成功提交，然后只有页面应该重定向到"cs_content"否则在任何错误的情况下，页面应该是
$ (document).ready(function ()
{
//$("#cs_content").show();
$('#cs').click(function ()
{
$('#cs_content').fadeIn('slow');
$('#rp_content').hide();
});
$('#ed').click(function ()
{
$('#ed_content').fadeIn('slow');
$('#cs_content').hide();
});
$('#del').click(function ()
{
$('#del_content').fadeIn('slow');
$('#ed_content').hide();
});
});
<div class="container2">
<div id="cs" style="float:left;margin:0px 0px;padding:7px;"><input type="button" value="Create"></div>
<div id="ed" style="float:left;margin:0px 0px;padding:7px;"><input type="button" value="Edit"></div>
<div id="del" style="float:left;margin:0px 0px;padding:7px;"><input type="button" value="Delete"></div>
<div id="cs_content"><?php $ds->create_ds($db_host,$db_username,$db_password); ?> </div>
<div id="ed_content" style="display:none;"> <?php $ds->update_ds($db_host,$db_username,$db_password); ?> </div>
<div id="del_content" style="display:none;"> <?php $ds->delete_ds($db_host,$db_username,$db_password); ?> </div>
</div>
更新代码:
class Datasource
{
private $db;
public function __construct($database){
$this->db = $database;
}
//CREATE DATASOURCE
public function create_ds($db_host,$db_username,$db_password)
{
if (isset($_POST['create_dsource']))
{
$dsource_host = htmlentities($_POST['dsource_host']);
$dsource_username = htmlentities($_POST['dsource_username']);
$dsource_password = $_POST['dsource_password'];
$dsource_name = htmlentities($_POST['dsource_name']);
if (empty($_POST['dsource_host']) || empty($_POST['dsource_username']) || empty($_POST['dsource_name']))
{
$errors[] = '<span class="error">All fields are required.</span>';
}
else
{
if (isset($_POST['dsource_host']) && empty($_POST['dsource_host'])) { $errors[] = '<span class="error">Datasource Host is required</span>'; }
else if ($_POST['dsource_host'] !== $db_host)
{ $errors[] = '<span class="error">dsource Host is not matching with the application data source host </span>'; }
if(isset($_POST['dsource_username']) && empty($_POST['dsource_username'])) { $errors[] = '<span class="error">Datasource username is required</span>'; }
else if ($_POST['dsource_username'] !== $db_username)
{ $errors[] = '<span class="error">Datasource Username is not matching with the application datasource username </span>'; }
if ($_POST['dsource_password'] !== $db_password)
{ $errors[] = '<span class="error">Datasource Password is not matching with the application datasource password </span>'; }
if (isset($_POST['dsource_name']) && empty($_POST['dsource_name'])) { $errors[] = '<span class="error">Datasource name is required</span>'; }
else if (!ctype_alnum($_POST['dsource_name']))
{ $errors[] = '<span class="error">Please enter a datasource name with only alphabets and numbers</span>'; }
}
if (empty($errors) === true)
{
try
{
$this->db->exec("CREATE DATABASE IF NOT EXISTS ".$dsource_name."");
$this->db->query("USE ".$dsource_name."");
$sql_filename = "includes/datasource.sql";
$sql_contents = file_get_contents($sql_filename);
$sql_contents = explode("@@", $sql_contents);
foreach($sql_contents as $query)
{
$result = $this->db->prepare($query);
$result->execute();
}
}
catch (PDOException $e) {
die("DB ERROR: ". $e->getMessage());
}
header('Location:home.php?success');
exit();
}
}
if (isset($_GET['success']) && empty($_GET['success']))
{
header('Refresh:0; url=home.php');
echo '<span class="error">Datasource is succesfully created</span>';
}
?>
<form action="" method="POST" accept-charset="UTF-8" id="create_ds" name="create_ds">
<table class="create_dsource">
<tr><td><label>Datasource Host</label><span style="color:#A60000">*</span></td>
<td><input type="text" name="dsource_host" required placeholder="localhost/server" value="<?php if(isset($_POST["dsource_host"])) echo $dsource_host; ?>" size="30">
</td></tr>
<tr><td><label>Datasource Username</label><span style="color:#A60000">*</span></td>
<td><input type="text" name="dsource_username" required placeholder="Datasource username" size="30" value="<?php if(isset($_POST["dsource_username"])) echo $dsource_username; ?>">
</td></tr>
<tr><td><label>Datasource Password</label></td>
<td><input type="password" name="dsource_password" placeholder="Datasource password" size="30" value="<?php if(isset($_POST["dsource_password"])) echo $dsource_password; ?>" autocomplete="off">
</td></tr>
<tr><td><label>Datasource Name</label><span style="color:#A60000">*</span></td>
<td><input type="text" name="dsource_name" size="30" required placeholder="Datasource name" value="<?php if(isset($_POST["dsource_name"])) echo $dsource_name; ?>">
</td></tr>
<tr><td><input type="submit" value="create datasource" style="background:#8AC007;color:#080808;padding:6px;" name="create_dsource"></td></tr>
</table>
</form>
<?php
//IF THERE ARE ERRORS, THEY WOULD BE DISPLAY HERE
if (empty($errors) === false)
echo '<div>' . implode('</p><p>', $errors) . '</div>';
}
} //class closes here
$ds = new Datasource($db);
更新例子。
你犯了大错，这不是你想做的事的正确方法。
你应该使用ajax。
阅读这里jQuery。AJAX指南。
我给你做了一个例子，如何做到这一点非常基本，但会做的工作:
HTML PAGE:
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script type="text/javascript">
$ (document).ready(function ()
{
//$("#cs_content").show();
$('#cs').click(function ()
{
createDs();
});
$('#ed').click(function ()
{
updateDs();
});
$('#del').click(function ()
{
deleteDs();
});
});
function createDs(){
$.ajax({
url: "check.php?proc=create",
type: "POST",
dataType:'json',
success: function(data)
{
$('#returnMessage').show();
$('#returnMessage').html(data.mes);
}
});
return false;
}
function updateDs(){
$.ajax({
url: "check.php?proc=update",
type: "POST",
dataType:'json',
success: function(data)
{
$('#returnMessage').show();
$('#returnMessage').html(data.mes);
}
});
return false;
}
function deleteDs(){
$.ajax({
url: "check.php?proc=delete",
type: "POST",
dataType:'json',
success: function(data)
{
$('#returnMessage').show();
$('#returnMessage').html(data.mes);
}
});
return false;
}
</script>
<div class="container2">
<div style="float:left;margin:0px 0px;padding:7px;"><input type="submit" value="Create" id="cs"></div>
<div style="float:left;margin:0px 0px;padding:7px;"><input type="submit" value="Edit" id="ed"></div>
<div style="float:left;margin:0px 0px;padding:7px;"><input type="submit" value="Delete" id="del"></div>
<div style="float:left;margin:0px 0px;padding:7px;"><input type="submit" value="Clear DIV" id="clear"></div>
<div id="returnMessage" style="display:none;"></div>
<div id="returnMessage" style="display:none;"></div>
</div>
check.php:(不要忘记在这里包含$ds-)
<?php
//include here $ds- so it could work and won't give you a error.
if(isset($_GET['proc']) && !empty($_GET['proc'])){
$proc = $_GET['proc'];
if($proc == 'create'){
$ds->create_ds($db_host,$db_username,$db_password);
$return = array('mes' => 'Created' );
header('content-type: application/json; charset=utf-8');
echo json_encode($return);
}elseif($proc == 'update'){
$ds->update_ds($db_host,$db_username,$db_password);
$return = array('mes' => 'Updated' );
header('content-type: application/json; charset=utf-8');
echo json_encode($return);
}elseif($proc == 'delete'){
$ds->delete_ds($db_host,$db_username,$db_password);
$return = array('mes' => 'Deleted' );
header('content-type: application/json; charset=utf-8');
echo json_encode($return);
}
}else{
$return = array('mes' => 'The $_GET is empty , check if all parms and ajax function passing to the true file, good luck :).' );
header('content-type: application/json; charset=utf-8');
echo json_encode($return);
}
?>
你必须包含文件到check.php或者使用$ds-，它必须是基本的，你应该看看ajax是如何工作的。
编辑:这里的工作示例:点击我进入演示，这里你可以下载示例:点击我下载示例
工作完美，不要忘记从check.php中取消注释，这样它就会做你需要的东西。
如果你仍然不能让它工作(即使你有工作演示)，去学习php和Javascript，这是我能帮助你的。
还可以在google上搜索firebug，这将帮助您看到ajax/post请求的错误，并且无论如何都会对您有所帮助。
当绑定到事件(如click)时，需要ajax来动态运行一些php代码。试着读取。ajax()
PHP代码在创建DOM之前执行。所以你的jquery不会再次运行这个函数它只是显示php函数已经发送的内容。您需要Ajax来运行php函数并显示它发回的数据。