Javascript ,所以我不知道到底是什么变化使它起作用。但这肯定让我走上了正确的道路!没有你的帮助;我还是会迷路的!谢谢你的帮助;但同样的问题。从菜单中选择项目时,“UserComments”部分不会更改。第一次加载时,它根据默认项目(第一个项目)按预期加载所有内容。但当
Javascript ,所以我不知道到底是什么变化使它起作用。但这肯定让我走上了正确的道路!没有你的帮助;我还是会迷路的!谢谢你的帮助;但同样的问题。从菜单中选择项目时,“UserComments”部分不会更改。第一次加载时,它根据默认项目(第一个项目)按预期加载所有内容。但当,javascript,php,jquery,mysql,ajax,Javascript,Php,Jquery,Mysql,Ajax,,所以我不知道到底是什么变化使它起作用。但这肯定让我走上了正确的道路!没有你的帮助;我还是会迷路的!谢谢你的帮助;但同样的问题。从菜单中选择项目时,“UserComments”部分不会更改。第一次加载时,它根据默认项目(第一个项目)按预期加载所有内容。但当进入菜单选择不同的菜单时;什么也没发生。也许我没有正确地声明Ajax或jQuery?最后,在与它进行了一整天整夜的斗争之后,我成功地让它运行起来了!我在这里和那里改变了很多小事情,所以我不知道到底是什么改变让它起作用。但这肯定让我走上了正确的道
,所以我不知道到底是什么变化使它起作用。但这肯定让我走上了正确的道路!没有你的帮助;我还是会迷路的!谢谢你的帮助;但同样的问题。从菜单中选择项目时,“UserComments”部分不会更改。第一次加载时,它根据默认项目(第一个项目)按预期加载所有内容。但当进入菜单选择不同的菜单时;什么也没发生。也许我没有正确地声明Ajax或jQuery?最后,在与它进行了一整天整夜的斗争之后,我成功地让它运行起来了!我在这里和那里改变了很多小事情,所以我不知道到底是什么改变让它起作用。但这肯定让我走上了正确的道路!没有你的帮助;我还是会迷路的!
<section id="UserComments" style="margin-left: 3em;">
<?php load_comments($UsersID, $login_session, $ProjectID); echo "<br />" ?>
</section>
function load_comments($UsersID,$username,$ProjectID) {
global $connection;
$sql = "SELECT * FROM UserComments JOIN Projects ON UserComments.ProjectID = Projects.ProjectID WHERE UserID = '$UsersID' AND Projects.ProjectID = '$ProjectID'";
$result = mysqli_query($connection, $sql) or die(mysqli_error($connection));
while ($row = mysqli_fetch_array($result, MYSQL_ASSOC)) {
echo '<p class="note"><span></span>' . nl2br($row['UserComment']) . ' ';
if ( empty($row['FileName']) ) {
echo '<br><br><span id="rightfloat"><font color="#5bc0de">' . $username . ' at ' . $row['DateSubmitted'] . '</font></span></p>';
}else {
$echo_file = '<a href="' . $row['UserFile'] . '"><img src="images/Attach-icon.png">' . $row['FileName'] . ' </a>';
echo '<br><br><span id="rightfloat"><font color="#5bc0de">' . $echo_file . ' ' . $username . ' at ' . $row['DateSubmitted'] . '</font></span><br></p>';
}
}
return;
}
function load_projects($UsersID) {
global $connection;
global $ProjectID;
$sql = "SELECT Projects.ProjectID, Projects.ProjectName, Users.UserID FROM Projects JOIN CustomerProject ON CustomerProject.ProjectID = Projects.ProjectID JOIN Users ON CustomerProject.UserID = Users.UserID WHERE CustomerProject.UserID = '$UsersID'";
$result = mysqli_query($connection, $sql);
while ($row = mysqli_fetch_array($result, MYSQL_ASSOC)) {
$idname = "ProjID-" . $row['ProjectID'];
echo '<a id="' . $idname . '" href="#" onclick="FindID(\'' . $idname . '\')">' . nl2br($row['ProjectName']) . '</a>';
}
echo "
<script type=\"text/javascript\">
function FindID(id_name) {
var sel_name = document.getElementById(id_name);
var sel_project_name = sel_name.textContent;
$jQuery.ajax({
type: 'POST',
url: \"comment-data.php\",
data: { 'proj_name': sel_project_name },
success: function(){ alert('success'); },
error: function(){ alert('failure'); }
});
}
</script>
";
}
require("DBConnection.php");
require_once("session.php");
$proj_name = $_POST['proj_name'];
$sql = "SELECT * Projects WHERE ProjectName = " . $proj_name;
$result = mysqli_query($connection, $sql) or die(mysqli_error($connection));
$count = mysqli_num_rows($result);
if (!empty($result)){
$row=mysqli_fetch_row($result);
$ProjectID = $row['ProjectID'];
// here was my feeble attempt to reload my comment data after the user selected a project from the db. This was not working, so I've commented out
// load_comments($UsersID, $login_session, $ProjectID);
} else {
echo "Project not found in database!";
}
<?php
include ("class.php")
?>
<html>
//some html code for your website
<section id="UserComments" style="margin-left: 3em;">
<?php load_comments($UsersID, $login_session, $ProjectID); echo "<br />" ?>
</section>
</html>
include ("class.php");
require("DBConnection.php");
require_once("session.php");
$proj_name = $_POST['proj_name'];
$sql = "SELECT * Projects WHERE ProjectName = " . $proj_name;
$result = mysqli_query($connection, $sql) or die(mysqli_error($connection));
$count = mysqli_num_rows($result);
if (!empty($result)){
$row=mysqli_fetch_row($result);
$ProjectID = $row['ProjectID'];
load_comments($UsersID, $login_session, $ProjectID);
// it should work now
} else {
echo "Project not found in database!";
}
function load_comments($UsersID,$username,$ProjectID) {
global $connection;
$sql = "SELECT * FROM UserComments JOIN Projects ON UserComments.ProjectID = Projects.ProjectID WHERE UserID = '$UsersID' AND Projects.ProjectID = '$ProjectID'";
$result = mysqli_query($connection, $sql) or die(mysqli_error($connection));
while ($row = mysqli_fetch_array($result, MYSQL_ASSOC)) {
echo '<p class="note"><span></span>' . nl2br($row['UserComment']) . ' ';
if ( empty($row['FileName']) ) {
echo '<br><br><span id="rightfloat"><font color="#5bc0de">' . $username . ' at ' . $row['DateSubmitted'] . '</font></span></p>';
}else {
$echo_file = '<a href="' . $row['UserFile'] . '"><img src="images/Attach-icon.png">' . $row['FileName'] . ' </a>';
echo '<br><br><span id="rightfloat"><font color="#5bc0de">' . $echo_file . ' ' . $username . ' at ' . $row['DateSubmitted'] . '</font></span><br></p>';
}
}
return;
}
function load_projects($UsersID) {
global $connection;
global $ProjectID;
$sql = "SELECT Projects.ProjectID, Projects.ProjectName, Users.UserID FROM Projects JOIN CustomerProject ON CustomerProject.ProjectID = Projects.ProjectID JOIN Users ON CustomerProject.UserID = Users.UserID WHERE CustomerProject.UserID = '$UsersID'";
$result = mysqli_query($connection, $sql);
while ($row = mysqli_fetch_array($result, MYSQL_ASSOC)) {
$idname = "ProjID-" . $row['ProjectID'];
echo '<a id="' . $idname . '" href="#" onclick="FindID(\'' . $idname . '\')">' . nl2br($row['ProjectName']) . '</a>';
}
echo "
<script type=\"text/javascript\">
function FindID(id_name) {
var sel_name = document.getElementById(id_name);
var sel_project_name = sel_name.textContent;
$jQuery.ajax({
type: 'POST',
url: \"comment-data.php\",
data: 'proj_name='+ sel_project_name,
success : function(code_html, status){
$(code_html).appendTo("#somewhereinthehtml");
alert('success');
},
error: function(){ alert('failure'); }
});
}
</script>
";
}