我有这个代码：
<iframe src="http://voting.first-jump.com/init.php?a=g&g=1516932783462&m=1&n=5&s=64&f=3.png&f_a=&f_b=&f_c=" allowtransparency="true" hspace="0" vspace="0" marginheight="0" marginwidth="0" frameborder="0" height="84" scrolling="no" width="323"></iframe>
我在 src 字符串中添加了一个 $post_id(为一个人在我的社交网络上发布的每个帖子制作唯一的帧加载(，所以，现在它是这样的：
<iframe src="http://voting.first-jump.com/init.php?a=g&g=1516932126956&m=10&n=5&s=20&f=3.png&f_a=&f_b=&f_c= <?php echo $post_id; ?>" allowtransparency="true" hspace="0" vspace="0" marginheight="0" marginwidth="0" frameborder="0" height="33" scrolling="no" width="103"></iframe>
我不知道我做错了什么，因为 $post_id 不起作用。
谢谢！
编辑：这是孔 php 代码：
<html>
<head>
<title></title>
<link rel="stylesheet" type="text/css" href="assets/css/style.css">
</head>
<body>
<style type="text/css">
* {
font-size: 12px;
font-family: Arial, Helvetica, Sans-serif;
}
</style>
<?php
require 'config/config.php';
include("includes/classes/User.php");
include("includes/classes/Post.php");
include("includes/classes/Notification.php");
if (isset($_SESSION['username'])) {
$userLoggedIn = $_SESSION['username'];
$user_details_query = mysqli_query($con, "SELECT * FROM users WHERE username='$userLoggedIn'");
$user = mysqli_fetch_array($user_details_query);
}
else {
header("Location: register.php");
}
?>
<script>
function toggle() {
var element = document.getElementById("comment_section");
if(element.style.display == "block")
element.style.display = "none";
else
element.style.display = "block";
}
</script>
<?php
//Get id of post
if(isset($_GET['post_id'])) {
$post_id = $_GET['post_id'];
}
$user_query = mysqli_query($con, "SELECT added_by, user_to FROM posts WHERE id='$post_id'");
$row = mysqli_fetch_array($user_query);
$posted_to = $row['added_by'];
$user_to = $row['user_to'];
if(isset($_POST['postComment' . $post_id])) {
$post_body = $_POST['post_body'];
$post_body = mysqli_escape_string($con, $post_body);
$date_time_now = date("Y-m-d H:i:s");
$insert_post = mysqli_query($con, "INSERT INTO comments VALUES ('', '$post_body', '$userLoggedIn', '$posted_to', '$date_time_now', 'no', '$post_id')");
if($posted_to != $userLoggedIn) {
$notification = new Notification($con, $userLoggedIn);
$notification->insertNotification($post_id, $posted_to, "comment");
}
if($user_to != 'none' && $user_to != $userLoggedIn) {
$notification = new Notification($con, $userLoggedIn);
$notification->insertNotification($post_id, $user_to, "profile_comment");
}
$get_commenters = mysqli_query($con, "SELECT * FROM comments WHERE post_id='$post_id'");
$notified_users = array();
while($row = mysqli_fetch_array($get_commenters)) {
if($row['posted_by'] != $posted_to && $row['posted_by'] != $user_to
&& $row['posted_by'] != $userLoggedIn && !in_array($row['posted_by'], $notified_users)) {
$notification = new Notification($con, $userLoggedIn);
$notification->insertNotification($post_id, $row['posted_by'], "comment_non_owner");
array_push($notified_users, $row['posted_by']);
}
}
echo "<p>Comment Posted </p>";
}
?>
<form action="comment_frame.php?post_id=<?php echo $post_id; ?>" id="comment_form" name="postComment<?php echo $post_id; ?>" method="POST">
<textarea name="post_body"></textarea>
<input type="submit" name="postComment<?php echo $post_id; ?>" value="Post">
</form>
<iframe src="http://voting.first-jump.com/init.php?a=g&g=1516932126956&m=10&n=5&s=20&f=3.png&f_a=&f_b=&f_c= <?php echo $post_id; ?>" allowtransparency="true" hspace="0" vspace="0" marginheight="0" marginwidth="0" frameborder="0" height="33" scrolling="no" width="103"></iframe>
<!-- Load comments -->
<?php
$get_comments = mysqli_query($con, "SELECT * FROM comments WHERE post_id='$post_id' ORDER BY id ASC");
$count = mysqli_num_rows($get_comments);
if($count != 0) {
while($comment = mysqli_fetch_array($get_comments)) {
$comment_body = $comment['post_body'];
$posted_to = $comment['posted_to'];
$posted_by = $comment['posted_by'];
$date_added = $comment['date_added'];
$removed = $comment['removed'];
//Timeframe
$date_time_now = date("Y-m-d H:i:s");
$start_date = new DateTime($date_added); //Time of post
$end_date = new DateTime($date_time_now); //Current time
$interval = $start_date->diff($end_date); //Difference between dates
if($interval->y >= 1) {
if($interval == 1)
$time_message = $interval->y . " year ago"; //1 year ago
else
$time_message = $interval->y . " years ago"; //1+ year ago
}
else if ($interval->m >= 1) {
if($interval->d == 0) {
$days = " ago";
}
else if($interval->d == 1) {
$days = $interval->d . " day ago";
}
else {
$days = $interval->d . " days ago";
}
if($interval->m == 1) {
$time_message = $interval->m . " month". $days;
}
else {
$time_message = $interval->m . " months". $days;
}
}
else if($interval->d >= 1) {
if($interval->d == 1) {
$time_message = "Yesterday";
}
else {
$time_message = $interval->d . " days ago";
}
}
else if($interval->h >= 1) {
if($interval->h == 1) {
$time_message = $interval->h . " hour ago";
}
else {
$time_message = $interval->h . " hours ago";
}
}
else if($interval->i >= 1) {
if($interval->i == 1) {
$time_message = $interval->i . " minute ago";
}
else {
$time_message = $interval->i . " minutes ago";
}
}
else {
if($interval->s < 30) {
$time_message = "Just now";
}
else {
$time_message = $interval->s . " seconds ago";
}
}
$user_obj = new User($con, $posted_by);
?>
<div class="comment_section">
<a href="<?php echo $posted_by?>" target="_parent"><img src="<?php echo $user_obj->getProfilePic();?>" title="<?php echo $posted_by; ?>" style="float:left;" height="30"></a>
<a href="<?php echo $posted_by?>" target="_parent"> <b> <?php echo $user_obj->getFirstAndLastName(); ?> </b></a>
<?php echo $time_message . "<br>" . $comment_body; ?>
<hr>
</div>
<?php
}
}
else {
echo "<center><br><br>No reviews</center>";
}
?>
</body>
</html>
代码之间有空格。
这是你的错误
f_c= <?php echo $post_id; ?> .该空间将在 url 中转换为%20。
所以它看起来像这样。 f_c=%20<?php echo $post_id; ?>
你可以试试这个
<iframe src="http://voting.first-jump.com/init.php?a=g&g=1516932126956&m=10&n=5&s=20&f=3.png&f_a=&f_b=&f_c=<?php echo $post_id; ?>" allowtransparency="true" hspace="0" vspace="0" marginheight="0" marginwidth="0" frameborder="0" height="33" scrolling="no" width="103"></iframe>