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Start your free trialTrần Phúc
2,264 PointsISSUE USE ORDER BY AND LIMIT IN PHP
WHY IT DONT WORK LIKE TEACHER [MY ERRO] http://imgur.com/Dcvq12Y
<?php
include("inc/functions.php");
$pageTitle = "Personal Media Library";
$section = null;
include("inc/header.php"); ?>
<div class="section catalog random">
<div class="wrapper">
<h2>May we suggest something?</h2>
<ul class="items">
<?php
$random = random_catalog_array();
foreach ($random as $item) {
echo get_item_html($item);
}
?>
</ul>
</div>
</div>
<?php include("inc/footer.php"); ?>
<?php
include("inc/functions.php");
$catalog = full_catalog_array();
$pageTitle = "Full Catalog";
$section = null;
if (isset($_GET["cat"])) {
if ($_GET["cat"] == "books") {
$pageTitle = "Books";
$section = "books";
} else if ($_GET["cat"] == "movies") {
$pageTitle = "Movies";
$section = "movies";
} else if ($_GET["cat"] == "music") {
$pageTitle = "Music";
$section = "music";
}
}
include("inc/header.php"); ?>
<div class="section catalog page">
<div class="wrapper">
<h1><?php
if ($section != null) {
echo "<a href='catalog.php'>Full Catalog</a> > ";
}
echo $pageTitle; ?></h1>
<ul class="items">
<?php
$categories = array_category($catalog,$section);
foreach ($categories as $id) {
echo get_item_html($catalog[$id]);
}
?>
</ul>
</div>
</div>
<?php include("inc/footer.php"); ?>
<? function random_catalog_array() {
include("connection.php");
try{
$results = $db->query("SELECT media_id, title,category,img
FROM Media
ORDER BY RAND()
LIMIT 4"
);
}
catch(Exception $e){
echo "Unable to retrieved results";
exit;
}
$catalog=$results->fetchAll();
return $catalog;
} ?>
1 Answer
Simon Coates
28,694 PointsHer method (random_catalog_array) looks the same, but she uses ORDER BY RANDOM() Can you see if that changes anything?
Trần Phúc
2,264 PointsTrần Phúc
2,264 PointsThanks
Ranvir Sahota
9,844 PointsRanvir Sahota
9,844 PointsBut why does this work? In the video she uses RAND but I had to use RANDOM? what was the difference between the two?
Simon Coates
28,694 PointsSimon Coates
28,694 PointsRanvir Sahota I think it might be the use of different databases and some differences in terms of sql between SQLLite and MySQL. But it's been ages since I did the tutorials, so i'm not sure.