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293 | <?php
/*
* Mehrere Bilder in einer Datenbank-Tabelle eintragen und ausgeben
CREATE TABLE `pictures` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`picture` longblob NOT NULL,
`width` varchar(10) COLLATE utf8_unicode_ci NOT NULL,
`height` varchar(10) COLLATE utf8_unicode_ci NOT NULL,
`name` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
`album` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
`description` text COLLATE utf8_unicode_ci NOT NULL,
`tags` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
*/
// Verbindung zur Datenbank
$db = new mysqli("localhost", "root", "", "test"); // Host, Benutzer, Passwort, Datenbank
mysqli_set_charset($db, "utf8");
$output = '';
$error = [];
// Angabe der Mimetypen (nur Bilddateien)
$mimeType = [
"jpg" => "image/jpeg",
"jpeg" => "image/jpeg",
"png" => "image/png",
"gif" => "image/gif",
"webp" => "image/webp",
];
// base64 Header
$base64Header = [
'1'=>"data:image/gif;base64,",
'2'=>"data:image/jpeg;base64,",
'3'=>"data:image/png;base64,",
'6'=>"data:image/bmp;base64,",
'18'=>"data:image/webp;base64,",
];
// Daten wurden über das Formular gesendet
if ($_SERVER["REQUEST_METHOD"] == "POST") {
// Schleife über alle Dateien
for ($i = 0; $i < count($_FILES["file"]["name"]); $i++) {
// Datei wurde ausgewählt
if (!isset($_FILES["file"]["name"][$i]) ||
empty($_FILES["file"]["name"][$i]))
$error[] = 'Bitte wählen Sie ein Bild aus!';
// Fehler beim hochladen
if ($_FILES["file"]["error"][$i])
$error[] = 'Fehler beim hochladen: ' . $_FILES["file"]["error"][$i];
// Temporäre Datei wurde hochgeladen
if (is_uploaded_file($_FILES["file"]["tmp_name"][$i])) {
// Info über die Datei holen
list($tmpWidth, $tmpHeight, $tmpType) = getImageSize($_FILES["file"]["tmp_name"][$i]);
$path = pathinfo($_FILES["file"]["name"][$i]);
$extension = strtolower($path["extension"]);
// Dateiformat überprüfen
if ($tmpWidth < 1 ||
$tmpHeight < 1 ||
!in_array($extension, array_keys($mimeType)))
$error[] = 'Falsches Dateiformat, erlaubt sind nur Bildformate!';
// Kein Fehler vorhanden
if (empty($error)) {
// Base64 Code-String erstellen
$code = file_get_contents($_FILES["file"]["tmp_name"][$i]);
$base64string = $base64Header[$tmpType] . base64_encode($code);
// Bild für die Ausgabe erstellen
$output .= '<figure><img src="' . $base64string . '" alt="" width="' . $tmpWidth . '" height="' . $tmpHeight . '">';
// In die DB-Tabelle eintragen
$insert = $db->prepare("INSERT INTO `pictures`
SET
`picture` = ?,
`width` = ?,
`height` = ?,
`name` = ?,
`album` = ?,
`description` = ?,
`tags` = ?"
);
$insert->bind_param("sssssss", $base64string,
$tmpWidth,
$tmpHeight,
$_FILES["file"]["name"][$i],
$_POST["album"],
$_POST["description"],
$_POST["tags"]);
if ($insert->execute()) {
// Dateiname des Bildes
$output .= '<figcaption>' . $_FILES["file"]["name"][$i] . '</figcaption></figure>';
}
}
else {
$output = '<p>' . implode('<br>✘ ', $error) . '</p>';
}
}
}
echo $output;
exit;
}
?>
<!DOCTYPE html>
<html lang="de">
<head>
<meta charset="UTF-8">
<title>Bilder in die Datenbank eintragen</title>
<meta name="viewport" content="width=device-width,initial-scale=1,shrink-to-fit=no">
<style>
body {
font-family: Verdana, Arial, Sans-Serif;
font-size: 1rem;
background: Whitesmoke;
}
h3 {
font-weight: Normal;
margin-left: 35px;
}
form {
margin-left: 45px;
}
label {
width: 180px;
display: Inline-Block;
}
input[type="text"] {
width: 250px;
}
textarea {
width: 440px;
height: 150px;
min-width: 440px;
min-height: 150px;
}
button {
padding: 5px;
margin: 5px;
}
mark {
background: Transparent;
color: Red;
}
figure > img {
display: Inline;
max-width: 100%;
height: Auto;
object-fit: contain;
box-shadow: 0px 0px 4px 2px #8E8E8E;
}
.outputstyle {
width: 550px;
height: 700px;
display: Block;
margin: 0 0 250px 35px;
padding: 10px;
overflow: Auto;
background: White;
color: Royalblue;
font-size: 0.80rem;
text-align: Center;
border: Solid 1px #BFBFBF;
}
img.picture {
width: 15%;
background: White;
padding: 0.5rem;
outline: Solid Thin Lightgrey;
background: linear-gradient(#FFFFFF, #E5E5E5);
box-shadow: 1px 1px 5px #727272;
display: Inline-Block;
margin-right: 0.8rem;
transition: all 0.7s;
}
img.picture:hover {
transform: scale(1.8,1.8);
}
</style>
<script>
const XHR = new XMLHttpRequest();
function request() {
if (document.getElementById("form").reportValidity()) {
XHR.open("POST", document.URL, true);
let daten = new FormData(document.getElementById("form"));
XHR.send(daten);
XHR.onreadystatechange = function() {
if (XHR.readyState >= 4 &&
XHR.status == 200) {
document.getElementById("output").innerHTML = XHR.responseText;
document.getElementById("output").classList.add("outputstyle");
}
}
}
}
function selectFiles(event) {
document.getElementById("preview").innerHTML = "";
for (var i = 0; i < event.target.files.length; i++) {
if (event.target.files[i]) {
var leser = new FileReader();
leser.addEventListener("load", picLoad);
leser.readAsDataURL(event.target.files[i]);
}
}
}
function picLoad(event) {
var img = document.createElement("img");
img.setAttribute("class", "picture");
img.setAttribute("alt", "Bildvorschau");
img.setAttribute("src", event.target.result);
document.getElementById("preview").appendChild(img);
}
window.addEventListener("DOMContentLoaded", function() {
document.getElementById("submit").addEventListener("click", request);
document.getElementById("file").addEventListener("change", selectFiles);
document.getElementById("reset").addEventListener("click", function () {
document.getElementById("output").classList.remove("outputstyle");
document.getElementById("output").innerHTML = "";
document.getElementById("preview").innerHTML = "";
});
});
</script>
</head>
<body>
<h3>Bilder in die Datenbank-Tabelle eintragen</h3>
<form id="form" method="post" enctype="multipart/form-data">
<p>
<label for="file">Bilder: <mark>*</mark></label> <input type="file" name="file[]" id="file" multiple="multiple" accept="image/*" required="required">
</p>
<div id="preview"></div>
<p>
<label for="album">Album: <mark>*</mark></label> <input type="text" name="album" id="album" required="required">
</p>
<p>
<label>Beschreibung:<br>
<textarea name="description"></textarea>
</label>
</p>
<p>
<label for="tags">Tags:</label> <input type="text" name="tags" id="tags">
</p>
<p>
<button type="reset" id="reset">Reset</button>
<button type="button" id="submit">Absenden</button>
</p>
</form>
<div id="output"></div>
</body>
</html> |
