【发布时间】:2015-04-29 13:01:00
【问题描述】:
以下代码将图像上传到临时目录并在将其添加到最终目录之前检查文件大小。但是如果我上传一个大文件,脚本就会超时。如何在文件添加到临时目录之前检查文件大小?
<?
$target_dir = "uploads/";
$new_file_name = time() . "_" . basename($_FILES["fileToUpload"]["name"]);
$target_file = $target_dir . $new_file_name;
$uploadOk = 1;
$imageFileType = pathinfo($target_file,PATHINFO_EXTENSION);
// Check if image file is a actual image or fake image
if(isset($_POST["submit"])) {
$check = getimagesize($_FILES["fileToUpload"]["tmp_name"]);
if($check !== false) {
echo "File is an image - " . $check["mime"] . ".";
$uploadOk = 1;
} else {
echo "File is not an image.";
$uploadOk = 0;
}
}
// Check if file already exists
if (file_exists($target_file)) {
echo "Sorry, file already exists.";
$uploadOk = 0;
}
// Check file size
if ($_FILES["fileToUpload"]["size"]/1024 > 5000) {
echo "Sorry, your file is too large.";
$uploadOk = 0;
}
// Allow certain file formats
if($imageFileType != "jpg" && $imageFileType != "png" && $imageFileType != "jpeg"
&& $imageFileType != "gif" ) {
echo "Sorry, only JPG, JPEG, PNG & GIF files are allowed.";
$uploadOk = 0;
}
// Check if $uploadOk is set to 0 by an error
if ($uploadOk == 0) {
echo "Sorry, your file was not uploaded.";
// if everything is ok, try to upload file
} else {
if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $target_file)) {
header('Location: publish.php?photo=' . $new_file_name);
echo "The file ". basename( $_FILES["fileToUpload"]["name"]). " has been uploaded.";
} else {
echo "Sorry, there was an error uploading your file.";
//debug
echo "Upload: " . $_FILES["fileToUpload"]["name"] . "<br>";
echo "Type: " . $_FILES["fileToUpload"]["type"] . "<br>";
echo "Size: " . ($_FILES["fileToUpload"]["size"] / 1024) . " kB<br>";
echo "Stored in: " . $_FILES["fileToUpload"]["tmp_name"];
}
}
include('modules/head.php');
?>
<form action="sell.php" method="post" enctype="multipart/form-data">
Select image to upload:
<input type="file" name="fileToUpload" id="fileToUpload">
<input type="submit" value="Upload Image" name="submit">
</form>
【问题讨论】:
-
如果脚本因较大的文件而超时,请查看类似 uploadify 的内容以将文件上传到“块”中
-
你将不得不在 JavaScript 中这样做
标签: php