實現檔案上傳不超過2m的圖片
file_upload.php
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>處理上傳檔案</title>
</head>
<body>
<?php
if ($_FILES["file"]["error"]>0){
echo "上傳檔案失敗！";
}
else
print_r($_FILES);
{
if($_FILES["file"]["type"]!='image/jpeg' && $_FILES["file"]["type"]!='image/pjpeg'){
echo "<script>alert('圖片格式不正確！請重新上傳！');history.back();</script>";
}
else {
if($_FILES["file"]["size"]>20){
echo "<script>alert('檔案太大！請重新上傳！');history.back();</script>";
}
}
if(move_uploaded_file($_FILES["file"]["tmp_name"],"d:/wamp/tmp/".date("d-m-y",time()).$_FILES["file"]["name"])){
echo "檔案上傳成功！";
}
}
?>
</body>
</html>
form.php
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>檔案的上傳</title>
</head>
<body>
點選瀏覽按鈕新增要上傳的檔案(*請上傳大小不能大於2M的jpg圖片)<br />
<form enctype="multipart/form-data" action="file_upload1.php" method="post">
<input type="file" name="file" /><br />
<input type="submit" value="上傳" />
</form>
</body>
</html>