save image in xampp and show it in web php - php

Question

The HTML upload form:
<form action="InformationData.php" method="post" enctype="multipart/form-data">
<label >Barangay Certification</label>
<input name="BarangayCertification" type="file" id="exampleInputFile1">
<button type="Submit" name="Submit" value="Upload">Submit</button>
</form>
The InformationData.php:
<?php
$conn = mysqli_connect("localhost", "root", "", "registration");
if($_POST['BarangayCertification']){
$BarangayCertification = $_POST['BarangayCertification'];
} else {
$BarangayCertification = "";
}
$sql = "INSERT INTO stakeholdersform (BarangayCertification) VALUES ($BarangayCertification);
?>
Code to show the image:
<?php
$conn = mysqli_connect("localhost", "root", "", "registration");
$informations = "SELECT * FROM stakeholderinformations";
$result = $conn->query($informations);
if ($result->num_rows > 0) {
while($row = $result->fetch_assoc()) {
$BarangayCertification = $row['BarangayCertification'];
echo $BarangayCertification;
}
}
?>
I tried to echo it but nothing happens, but I can see the image in the database.

Answer 1

From PHP documentation
echo — Output one or more strings
So, no, you can not echo image.
What you could do is
echo '<img src="data:image/jpeg;base64,' . $BarangayCertification . '">'
Although there's an upper limit about the size of $BarangayCertification and I do not recommend storing image in your database.

Answer 2

If connection to databases is set correctly.this below code work.But at first you must create a directory upload in the root
form
<form action="InformationData.php" method="post" enctype="multipart/form-data">
<label >Barangay Certification</label>
<input name="BarangayCertification" type="file" id="exampleInputFile1">
<button type="Submit" name="Submit" value="Upload">Submit</button>
</form>
The InformationData.php:
<?php
$conn = mysqli_connect("localhost", "root", "", "registration");
if (isset($_POST("Submit"))){
if($_POST['BarangayCertification']){
// $BarangayCertification = $_POST['BarangayCertification'];
if (file_exists("upload/" . $_FILES["BarangayCertification"]["name"])) {
echo $_FILES["BarangayCertification"]["name"] . " <b>already exists.</b> ";
} else {
///creat upload in root
move_uploaded_file($_FILES["BarangayCertification"]["tmp_name"], "upload/" . $_FILES["BarangayCertification"]["name"]);
$BarangayCertification = "//".$_SERVER['HTTP_HOST'].'//'. "upload/" . $_FILES["file"]["name"];
}
} else {
$BarangayCertification = "";
}
}
$sql = "INSERT INTO stakeholdersform (BarangayCertification) VALUES ($BarangayCertification)";
?>
Code to show the image:
<?php
$conn = mysqli_connect("localhost", "root", "", "registration");
$informations = "SELECT * FROM stakeholderinformations";
$result = $conn->query($informations);
if ($result->num_rows > 0) {
while($row = $result->fetch_assoc()) {
$BarangayCertification = $row['BarangayCertification'];
echo "<img src=".$BarangayCertification.">";
}
}
?>