Write each uploaded file name to SQL database (PHP, MySQL) - php

Question

I'm a PHP beginner and i managed to muscle up a code which has a person upload up to 4 documents to a designated folder on a server. I'm now having trouble writing code which takes these 4 document names and adds them to that person's column with the rest of input data. I believe the right approach is to go with a "foreach" loop which increments variable name every time it goes through uploaded file names. I've tried doing this with $documentname[$i] = $file_name; but it's not working.
This is what I have so far:
$upload_dir = 'uploads/';
$allowed_types = array(
'doc',
'docx'
);
$maxsize = 4 * 1024 * 1024;
if (!empty(array_filter($_FILES['files']['name']))) {
// var_dump($_FILES);
// die();
$i=1;
foreach ($_FILES['files']['tmp_name'] as $key => $value) {
$file_tmpname = $_FILES['files']['tmp_name'][$key];
$file_name = $_FILES['files']['name'][$key];
$file_size = $_FILES['files']['size'][$key];
$file_ext = pathinfo($file_name, PATHINFO_EXTENSION);
$filepath = $location . $file_name;
$documentname[$i] = $file_name;
if (in_array(strtolower($file_ext), $allowed_types)) {
if ($file_size > $maxsize)
echo "Greška, datoteke su veće od dozvoljene vrijednosti (4MB)";
if (file_exists($filepath)) {
$filepath = $location . time() . $file_name;
if (move_uploaded_file($file_tmpname, $filepath)) {
echo "{$file_name} uspješno uploadan <br />";
} else {
echo "Error uploading {$file_name} <br />";
}
} else {
if (move_uploaded_file($file_tmpname, $filepath)) {
echo "{$file_name} uspješno uploadan <br />";
} else {
echo "Error uploading {$file_name} <br />";
}
}
} else {
// If file extention not valid
echo "Error uploading {$file_name} ";
echo "({$file_ext} file type is not allowed)<br / >";
}
}
} else {
// If no files selected
echo "No files selected.";
}}
And this is the sql code:
if (isset($_POST['signup'])) {
$fname = $_POST['fname'];
$lname = $_POST['lname'];
$documentname1 = $_POST['documentname1'];
$documentname2 = $_POST['documentname2'];
$documentname3 = $_POST['documentname3'];
$documentname4 = $_POST['documentname4'];
$msg = mysqli_query($con, "insert into users(fname,lname,documentname1,documentname2,documentname3,documentname4)
values('$fname','$lname','$documentname1','$documentname2','$documentname3','$documentname4')");
So the question is: is it possible to iterate through the uploaded files name array and assign each file name a variable like #documentname1,#documentname2,... to write these names in the database?
Thank you in advance!

Answer 1

Change your code to look like this. And also use prepared statement - PDO
if (isset($_POST['signup'])) {
$upload_dir = 'uploads/';
$allowed_types = array(
'doc',
'docx'
);
$fname = $_POST['fname'];
$lname = $_POST['lname'];
$countfiles = count($_FILES['files']['name']);
$doc_name = [];
$maxsize = 4 * 1024 * 1024;
if (!empty(array_filter($_FILES['files']['name']))) {
// var_dump($_FILES);
// die();
for ($i=0;$i<$countfiles;$i++) {
$file_tmpname = $_FILES['files']['tmp_name'][$i];
$file_name = $_FILES['files']['name'][$i];
$file_size = $_FILES['files']['size'][$i];
$file_ext = pathinfo($file_name, PATHINFO_EXTENSION);
$filepath = $location . $file_name;
$doc_name[] += $_FILES['files']['name'][$i];
if (in_array(strtolower($file_ext), $allowed_types)) {
if ($file_size > $maxsize)
$error[] = "Greška, datoteke su veće od dozvoljene vrijednosti (4MB)";
if (file_exists($filepath)) {
$filepath = $location . time() . $file_name;
if (move_uploaded_file($file_tmpname, $filepath)) {
$success[] = "{$file_name} uspješno uploadan <br />";
} else {
$error[] = "Error uploading {$file_name} <br />";
}
}
} else {
// If file extention not valid
$error[] = "Error uploading {$file_name} ";
$error[] = "({$file_ext} file type is not allowed)<br / >";
}
}
} else {
// If no files selected
$error[] = "No files selected.";
}}
if (!isset($error)) {
$documentname1 = $doc_name[0]
$documentname2 = $doc_name[1]
$documentname3 = $doc_name[2]
$documentname4 = $doc_name[3]
$msg = mysqli_query($con, "insert into users(fname,lname,documentname1,documentname2,documentname3,documentname4)
values('$fname','$lname','$documentname1','$documentname2','$documentname3','$documentname4')");
}
}
to show errors on your html
if(isset($error)){
foreach($error as $error){
echo '<div class="alert alert-danger" role="alert">
<button class="close" data-dismiss="alert"></button>' .$error.'<br /> </div>';
}
}
to show success
if(isset($success)){
foreach($success as $success){
echo '<div class="alert alert-success" role="alert">
<button class="close" data-dismiss="alert"></button>' .$success.'<br /> </div>';
}
}