PHP上傳實例

上傳檔案的網頁

<form enctype="multipart/form-data" action="__URL__" method="POST">
    <!-- MAX_FILE_SIZE must precede the file input field -->
    <input type="hidden" name="MAX_FILE_SIZE" value="30000" />
    <!-- Name of input element determines name in $_FILES array -->
    Send this file: <input name="userfile" type="file" />
    <input type="submit" value="Send File" />
</form>

接收參數陣列
檔案名稱
$_FILES['userfile']['name'] 

檔案格式(image/jpeg)
$_FILES['userfile']['type'] 

檔案大小
$_FILES['userfile']['size'] 

檔案暫存的位置(伺服器上暫存的位置,必須要移動到正確的位置)
$_FILES['userfile']['tmp_name'] 

錯誤訊息
$_FILES['userfile']['error']

語法例:


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<?php
// In PHP versions earlier than 4.1.0, $HTTP_POST_FILES should be used instead
// of $_FILES.

$uploaddir = '/var/www/uploads/';
$uploadfile = $uploaddir . basename($_FILES['userfile']['name']);

echo '<pre>';
if (move_uploaded_file($_FILES['userfile']['tmp_name'], $uploadfile)) {
   echo "File is valid, and was successfully uploaded.\\\\n";
} else {
   echo "Possible file upload attack!\\\\n";
}

echo 'Here is some more debugging info:';
print_r($_FILES);

print "</pre>";

?> 

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多檔同時傳送陣列實例<form action="" method="post" enctype="multipart/form-data"> <p>Pictures: <input type="file" name="pictures[]" /> <input type="file" name="pictures[]" /> <input type="file" name="pictures[]" /> <input type="submit" value="Send" /> </p> </form><?php
foreach ($_FILES["pictures"]["error"] as $key => $error) {
   if ($error == UPLOAD_ERR_OK) {
       $tmp_name = $_FILES["pictures"]["tmp_name"][$key];
       $name = $_FILES["pictures"]["name"][$key];
       move_uploaded_file($tmp_name, "data/$name");
   }
}
?>