我有使用 <input type="file">
上传单个文件的经验。但是,我在尝试上传多个文件时遇到了困难。
例如,我想选择一系列的图片然后一次性将它们全部上传到服务器上。
如果可能的话,最好使用一个单独的文件输入控件。
有没有人知道如何实现这个功能呢?
这在HTML5中是可能的。例如(PHP 5.4):
<!doctype html>
<html>
<head>
<title>Test</title>
</head>
<body>
<form method="post" enctype="multipart/form-data">
<input type="file" name="my_file[]" multiple>
<input type="submit" value="Upload">
</form>
<?php
if (isset($_FILES['my_file'])) {
$myFile = $_FILES['my_file'];
$fileCount = count($myFile["name"]);
for ($i = 0; $i < $fileCount; $i++) {
?>
<p>File #<?= $i+1 ?>:</p>
<p>
Name: <?= $myFile["name"][$i] ?><br>
Temporary file: <?= $myFile["tmp_name"][$i] ?><br>
Type: <?= $myFile["type"][$i] ?><br>
Size: <?= $myFile["size"][$i] ?><br>
Error: <?= $myFile["error"][$i] ?><br>
</p>
<?php
}
}
?>
</body>
</html>
在Chrome中选择两个项目后,它看起来像这样:
点击“上传”按钮后,它看起来像这样:
这只是一个完全工作答案的草图。有关在PHP中正确、安全地处理文件上传的更多信息,请参见PHP手册:处理文件上传。
multiple =“multiple”
? - vol7ron要创建多文件上传,你需要做以下几件事情,其实很基础:不需要使用Java、Ajax或Flash,只需从以下内容开始构建普通的文件上传表单:
<form enctype="multipart/form-data" action="post_upload.php" method="POST">
成功的关键在于:
<input type="file" name="file[]" multiple />
不要忘记这些方括号!在post_upload.php中尝试以下代码:
<?php print_r($_FILES['file']['tmp_name']); ?>
请注意,你将得到一个包含 tmp_name 数据的数组,这意味着你可以通过第三对方括号访问每个文件,例如:
$_FILES['file']['tmp_name'][0]
您可以使用PHP的count()函数来计算选择的文件数量。祝好运!
foreach
语句循环遍历文件,而无需知道上传的文件数量... - ygesher在Firefox 5中的完整解决方案:
<html>
<head>
</head>
<body>
<form name="uploader" id="uploader" action="multifile.php" method="POST" enctype="multipart/form-data" >
<input id="infile" name="infile[]" type="file" onBlur="submit();" multiple="true" ></input>
</form>
<?php
echo "No. files uploaded : ".count($_FILES['infile']['name'])."<br>";
$uploadDir = "images/";
for ($i = 0; $i < count($_FILES['infile']['name']); $i++) {
echo "File names : ".$_FILES['infile']['name'][$i]."<br>";
$ext = substr(strrchr($_FILES['infile']['name'][$i], "."), 1);
// generate a random new file name to avoid name conflict
$fPath = md5(rand() * time()) . ".$ext";
echo "File paths : ".$_FILES['infile']['tmp_name'][$i]."<br>";
$result = move_uploaded_file($_FILES['infile']['tmp_name'][$i], $uploadDir . $fPath);
if (strlen($ext) > 0){
echo "Uploaded ". $fPath ." succefully. <br>";
}
}
echo "Upload complete.<br>";
?>
</body>
</html>
<html> <head> </head> <body> <form name="uploader" id="uploader" action="multifile.php" method="POST" enctype="multipart/form-data" > <input id="infile" name="infile[]" type="file" onBlur="submit();" multiple="true" ></input> </form>
- Thaps<form action="" method="POST" enctype="multipart/form-data">
Select image to upload:
<input type="file" name="file[]" multiple/>
<input type="submit" name="submit" value="Upload Image" />
</form>
使用FOR循环
<?php
$file_dir = "uploads";
if (isset($_POST["submit"])) {
for ($x = 0; $x < count($_FILES['file']['name']); $x++) {
$file_name = $_FILES['file']['name'][$x];
$file_tmp = $_FILES['file']['tmp_name'][$x];
/* location file save */
$file_target = $file_dir . DIRECTORY_SEPARATOR . $file_name; /* DIRECTORY_SEPARATOR = / or \ */
if (move_uploaded_file($file_tmp, $file_target)) {
echo "{$file_name} has been uploaded. <br />";
} else {
echo "Sorry, there was an error uploading {$file_name}.";
}
}
}
?>
使用FOREACH循环
<?php
$file_dir = "uploads";
if (isset($_POST["submit"])) {
foreach ($_FILES['file']['name'] as $key => $value) {
$file_name = $_FILES['file']['name'][$key];
$file_tmp = $_FILES['file']['tmp_name'][$key];
/* location file save */
$file_target = $file_dir . DIRECTORY_SEPARATOR . $file_name; /* DIRECTORY_SEPARATOR = / or \ */
if (move_uploaded_file($file_tmp, $file_target)) {
echo "{$file_name} has been uploaded. <br />";
} else {
echo "Sorry, there was an error uploading {$file_name}.";
}
}
}
?>
<form method="post" enctype="multipart/form-data" >
<input type="file" name="file[]" multiple id="file"/>
<input type="submit" name="ok" />
</form>
<?php
if(isset($_POST['ok']))
foreach ($_FILES['file']['name'] as $filename) {
echo $filename.'<br/>';
}
?>
这很容易...完成
$_FILES['file'] = array ({file_array},{file_array]..)
)。部分答案:pear HTTP_UPLOAD 可以很有用 http://pear.php.net/manual/en/package.http.http-upload.examples.php
这里有一个多文件的完整示例
$fields=array("id"=$_POST['idfieldname'], "name"=$_POST['namefield'],"address"=$_POST['addressfield']);
然后将该字段传递到函数 $fields 中。
$table 是您要存储数据的表的名称。
function multipleImageUpload($arrayimage,$dir,$fields,$table)
{
//extracting extension of uploaded file
$allowedExts = array("gif", "jpeg", "jpg", "png");
$temp = explode(".", $arrayimage["name"]);
$extension = end($temp);
//validating image
if ((($arrayimage["type"] == "image/gif")
|| ($arrayimage["type"] == "image/jpeg")
|| ($arrayimage["type"] == "image/jpg")
|| ($arrayimage["type"] == "image/pjpeg")
|| ($arrayimage["type"] == "image/x-png")
|| ($arrayimage["type"] == "image/png"))
//check image size
&& ($arrayimage["size"] < 20000000)
//check iamge extension in above created extension array
&& in_array($extension, $allowedExts))
{
if ($arrayimage["error"] > 0)
{
echo "Error: " . $arrayimage["error"] . "<br>";
}
else
{
echo "Upload: " . $arrayimage["name"] . "<br>";
echo "Type: " . $arrayimage["type"] . "<br>";
echo "Size: " . ($arrayimage["size"] / 1024) . " kB<br>";
echo "Stored in: ".$arrayimage['tmp_name']."<br>";
//check if file is exist in folder of not
if (file_exists($dir."/".$arrayimage["name"]))
{
echo $arrayimage['name'] . " already exists. ";
}
else
{
//extracting database fields and value
foreach($fields as $key=>$val)
{
$f[]=$key;
$v[]=$val;
$fi=implode(",",$f);
$value=implode("','",$v);
}
//dynamic sql for inserting data into any table
$sql="INSERT INTO " . $table ."(".$fi.") VALUES ('".$value."')";
//echo $sql;
$imginsquery=mysql_query($sql);
move_uploaded_file($arrayimage["tmp_name"],$dir."/".$arrayimage['name']);
echo "<br> Stored in: " .$dir ."/ Folder <br>";
}
}
}
//if file not match with extension
else
{
echo "Invalid file";
}
}
//function imageUpload ends here
}
//imageFunctions类在此结束
您可以尝试使用此代码插入多个带有扩展名的图像,此函数是为了检查图像文件而创建的,您可以在代码中替换特定文件的扩展名列表