how to fetch all the images from the database
Question
I have a database table where I have stored the images name along with the StudentId. I am fetching the images from a CURRENT student by it's studentId just like an Instagram home page where you can see all your uploaded images. I am not storing the images into a database but saving all the images into a directory called "upload/" and only the name of the images are getting saved into the db.
I have currently 3 images in my db with the same StudentId. But The problem is sometimes I am able to fetch only one image or none from it. I have tried many code but it's still not working. I am not sure where is the mistake. Is it in looping or i am unable to fetch all the images from the db.
<?php
session_start();
include 'common.php';
$id = $_SESSION['student'];
$command = "SELECT * FROM UsersImages WHERE StudentId = ".$id;
$stmt = $dbh->prepare($command);
$result = $stmt->execute();
?>
<html>
<head>
<meta charset="UTF-8">
<title>hello</title>
</head>
<body>
<nav>
<ul>
<li><a href="home.php">Home</a></li>
<li><a href="profile.php">Upload</a></li>
</ul>
</nav>
<div>
<?php
$row = $stmt->fetch();
$dir = $row['img_name'];
foreach($dir as $images){
echo "<img src=". $images." alt='images'>";
}
?>
</div>
</body>
</html>
2 answers
solution1
1 ACCPTED 2017-12-28 08:08:35
just update your php code, you only store only image name which wrong process so it will not work and use fetch_assoc() to process your array data
<?php
$row = $stmt->fetch();
$dir = $row['img_name']; // this is wrong process
foreach($dir as $images){
echo "<img src=". $images." alt='images'>";
}
?>
to
<?php
$results = $stmt->fetchAll(PDO::FETCH_ASSOC); // get all result using this
foreach ($results as $data)
{
$images = $data['img_name']; // get image then use it in your code
echo "<img src=". $images." alt='images'>";
}
?>
Try this
$results = $stmt->fetch(PDO::FETCH_ASSOC); // get all result using this
$images = $results['img_name']; // get image then use it in your code
echo "<img src=". $images." alt='images'>";
for more information about select data with loop
solution2
1 2017-12-28 08:11:06
Please find the complete answer for this.
- Add PDO::FETCH_ASSOC while fetching the data
<?php
session_start();
include 'common.php';
$id = $_SESSION['student'];
$command = "SELECT * FROM UsersImages WHERE StudentId = ".$id;
$stmt = $dbh->prepare($command);
$result = $stmt->execute();
?>
<html>
<head>
<meta charset="UTF-8">
<title>hello</title>
</head>
<body>
<nav>
<ul>
<li><a href="home.php">Home</a></li>
<li><a href="profile.php">Upload</a></li>
</ul>
</nav>
<div>
<?php
$images = $stmt->fetchAll(PDO::FETCH_ASSOC);
foreach($images as $image){
echo "<img src=". $image['img_name']." alt='images'>";
}
?>
</div>
</body>
</html>
Hope this helps !
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