我有一個(gè)上傳圖像到數(shù)據(jù)庫代碼是這樣的：<form method="post" action="quanly.php" class="form-group justify-content-center" enctype="multipart/form-data"> <div class="custom-file mb-3"> <input type="file" class="custom-file-input" id="image" name="image"> <label class="custom-file-label" for="customFile">Choose file</label> </div> <div class="col text-center"> <button type="submit" name="submit" id="add_btn" class="btn btn-primary mb-2"> <i class="fas fa-plus"></i>Submit</button> </div> </form>和 PHP 代碼：$image = addslashes($_FILES['image']['name']); $query = "INSERT INTO tasks (image) VALUES ('$image')"; mysqli_query($db, $query); //db is the mysql connection一切上傳工作正常，但我有一些代碼可以使用 Bootstrap 4 模式顯示圖像<?php $i = 1; while ($row = mysqli_fetch_array($tasks)) { ?><button type="button" class="btn btn-primary btn-sm " data-toggle="modal" data-target="#imagemodal<?php echo $row['id'];?>" <?php if (empty($row['image'])) { echo "disabled"; } ?> ><i class="fas fa-image"></i></button> <!-- IMAGE MODAL BEGIN --> <div class="modal fade" id="imagemodal<?php echo $row['id'];?>"> <div class="modal-dialog"> <div class="modal-content"> <!-- Modal Header --> <div class="modal-header"> <h4 class="modal-title">Xem ?nh/ ?ính kèm</h4> <button type="button" class="close" data-dismiss="modal">×</button> </div> <!-- Modal body --> <div class="modal-body"> <?php echo '<img src="data:image/jpeg;base64,'.base64_encode( $row['image'] ).'"/>'; ?> </div> <!-- Modal footer --> <div class="modal-footer"> <button type="button" class="btn btn-danger" data-dismiss="modal">Close</button> </div> </div> </div></div><!-- IMAGE MODAL END --> <?php $i++; } ?> 哪行圖像顯示一個(gè)小圖像方塊（錯(cuò)誤），當(dāng)我查看圖像 url 時(shí)，它是這樣的： data:image/jpeg;base64,ei5wbmc=
1 回答
波斯汪
TA貢獻(xiàn)1811條經(jīng)驗(yàn) 獲得超4個(gè)贊
在文件夾代碼中存儲(chǔ)和上傳圖像
<?php
if(isset($_POST['but_upload'])){
$name = $_FILES['file']['name'];
$target_dir = "upload/";
$target_file = $target_dir . basename($_FILES["file"]["name"]);
// Select file type
$imageFileType = strtolower(pathinfo($target_file,PATHINFO_EXTENSION));
// Valid file extensions
$extensions_arr = array("jpg","jpeg","png","gif");
// Check extension
if( in_array($imageFileType,$extensions_arr) ){
// Insert record
$query = "insert into images(name) values('".$name."')";
mysqli_query($con,$query);
// Upload file
move_uploaded_file($_FILES['file']['tmp_name'],$target_dir.$name);
}
}
?>
<form method="post" action="" enctype='multipart/form-data'>
<input type='file' name='file' />
<input type='submit' value='Save name' name='but_upload'>
</form>
在顯示視圖中顯示。
<?php
$sql = "select name from images where id=1";
$result = mysqli_query($con,$sql);
$row = mysqli_fetch_array($result);
$image = $row['name'];
$image_src = "upload/".$image;
?>
<img src='<?php echo $image_src; ?>' >
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