Question

how can I get the variable value I need, I have selected comments and like values through MySQL and have created a like button, but when I click like, it adds the like to the last selected/posted variable value, so it likes the last comment generated. How to I get it to like the one I wanted and not the last selected?

Example:

I have comments with id’s (1,2,3) when generated it orders them in that order (1,2,3) when I like comment with id=2 it likes comment 3 because it was last generated so the varible id has a value of 3 at the time I liked comment 2.

I don’t make any sense, I hope you guys get it, please help???

Answer 1

note.php

//-------- WHILE LOOP FOR GETTING NOTE COMMENTS -------

$commentsList = array();

$query = mysql_query("SELECT * FROM note_comments WHERE note_id='$note_id'");
while (($row = mysql_fetch_assoc($query)) != false) {
    $commentsList[] = array(
        'comId' => $row['id'],
        'comment' => $row['comment'],
        'com_likes' => $row['likes'],
        'com_likers' => $row['likers']
    );
}

note.php (body):

        <div id="noteComments">
        <h2>Comments</h2>
        <?php 
        $commentL = $commentsList;
        if (count($commentL) == 0) {
            echo 'Sorry, there are no comments.';
        } else {
            echo '<ul style="list-style:none;">';
            foreach($commentL as $comment) {
                echo '<li><p>', $comment['comment'], '</p><p><a style="background-color:#3b3c3b; color:#fff;
                text-decoration:none; padding: 1 5 1 5; border-radius:5px; border: 1px solid black; " href="#" onclick="like_add(', $comment['comId'] ,');">Like</a><span id="comment_', $comment['comId'] ,'_likes">', $comment['com_likes'] , '</span> like this</p></li>';
            }
            echo '</ul>';
        }
        ?>
        </div><!-- end noteComments -->

---

like.js

function like_add(comId) {
$.post('ajax/like_add.php', {comId:comId}, function(data) {
    if (data == 'success') {
        like_get(comId);
    } else {
        alert(data);
    }
}); 
}

function like_get(comId) {
$.post('ajax/like_get.php', {comId:comId}, function(data) {
    $('#comment_'+comId+'_likes').text(data);
});
}

---

like_add.php

<?php
include_once("../scripts/checkuserlog.php");
include '../functions/like.php';
if (isset($_POST['comId']) && comment_exists($_POST['comId'])) {
$comId = $_POST['comId'];
add_like($comId);
}
?>

like_get.php

<?php
include '../scripts/checkuserlog.php';
include '../functions/like.php';
if (isset($_POST['comId']) && comment_exists($_POST['comId'])) {
echo like_count($_POST['comId']);
}
?>

---

like.php

<?php
function comment_exists($comId) {
$comId = (int)$comId;
return (mysql_result(mysql_query("SELECT COUNT('id') FROM note_comments WHERE id=$comId"), 0) == 0) ? false : true;
}

function like_count($comId) {
$comId = (int)$comId;
return (int)mysql_result(mysql_query("SELECT likes FROM note_comments WHERE id=$comId"), 0, 'likes');
}
function add_like($comId) {
$comId = (int)$comId;
$visitor = $_SESSION['id'];
$com_likers = "";
$query = mysql_query("SELECT likes, likers FROM note_comments WHERE id='$comId'");
while (($row = mysql_fetch_array($query)) != false) {

        $com_likes = $row['likes'];
        $com_likers = $row['likers'];
} 
$thisComlikers = explode(",", $com_likers);
if (!in_array($visitor, $thisComlikers)) {
    if ($com_likers != "") { $com_likers = "$com_likers,$visitor"; } else { $com_likers = "$visitor"; }

mysql_query("UPDATE note_comments SET likes = likes + 1 WHERE id=$comId")or die (mysql_error());
mysql_query("UPDATE note_comments SET likers =$com_likers WHERE id=$comId")or die (mysql_error());
echo 'success';
} else {
    echo 'You have already liked this!';
}
}

?>