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我试图建立一个评论系统PHP和HTML评论系统
这是我的代码
<html>
<head>
<link rel="stylesheet" type="text/css" href="css.css">
<style>
.back_glob{width: 350px}
</style>
<script type="text/javascript" src="jquery-3.1.0.min.js"></script>
<script type="text/javascript">
$(function(){
$(".tombol_login").click(function() {
var txt = $("[name=comment]").val();
$("#comment").submit();
})});
</script>
<style>
.back_glob{width: 450px}
</style>
</head>
<body>
<div class = "back_glob">
<div class="tableC">
<a href="contetmenu.php"><img src="img\back.png" alt="back" height="42" width="42"></a>
<div class ="back_header">
<h4>comment</h4>
</div>
<div class= "table">
<form id="comment" name="comment" action="contet2.php" method="post">
<div class="row">
<div class="col">comment</div>
<div class="col">:</div>
<div class="col"><textarea name="comment" rows ="10" cols="40"></textarea></div>
</div>
<div class="tom">
<button type="button" class="tombol_login">Submit</button>
</div>
</form>
</div>
</div>
</div>
</body>
</html>
<?php
$servername = "localhost";
$dbname = "databaseform";
$username = "root";
$password = "";
session_start();
$page = 2;
$conn = new PDO("mysql:host =$servername ; dbname=$dbname", $username, $password);
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$query = "SELECT form.Username, comment.Comment, comment.time FROM
form, comment WHERE
form.pkey=comment.pkey AND
comment.page=$page
ORDER BY comment.time DESC";
$result = $conn->query($query);
$hasil = $result->fetchAll();
$Comment = $_POST['comment'];
try
{
// injec
$query = "INSERT INTO comment (pkey,Comment,time,page)
VALUES (:Username,:Comment,NOW(),:page)";
$sql = $conn->prepare($query) ;
$sql->BindValue(':Username',reset($_SESSION['txt_login']));
$sql->BindValue(':Comment',$Comment);
$sql->BindValue(':page',$page);
$sql->execute();
$query = "SELECT form.Username, comment.Comment, comment.time FROM
form, comment WHERE
form.pkey=comment.pkey AND
comment.page=$page
ORDER BY comment.time DESC";
$result = $conn->query($query);
$hasil = $result->fetchAll();
echo '<div class="back_glob">';
echo '<div class = "table">';
echo '<div class = "tableC">';
echo '</div>';
}
catch(PDOException $e)
{
echo $query . "<br>" . $e->getMessage();
}
for($i = 0 ; $i < count($hasil);$i++)
{
echo'<div class="row">';
echo '<div class="col2">'.$result[$i]['Username'].'</div>';
echo '<div class="col2">'.$result[$i]['Comment'].'</div>';
echo '<div class="col2">'.$result[$i]['time'].'</div>';
echo'</div>';
}
?>
但提交按钮之前,PHP的一部分将无法识别$_POST['comment']
,我可以”除非我点击提交按钮,否则显示先前的评论。
是否有任何解决方案来纠正?
这应该是一个评论而不是答案。 – kikuyu1
感谢您的建议。下次我会。 – Noman
我想说的是,当我进入评论页面时,我希望看到在我去页面atm之前提交的其他评论。在我的代码中,我使用post方法在一个表单中创建了一个名为“comment”的变量,所以PHP会将该评论识别为“$ _POST ['comment']”。但为了做到这一点,我必须点击提交按钮,否则“$ _POST ['comment']”将不会被创建,因此PHP不会识别任何注释输入。我问的是有解决办法吗?希望这能够澄清我的问题。 – newb