[英]how to display the uploaded file contents on the same page without refreshing?
我有以下html和php代碼,可在html頁面中讀取上載的文件,並在另一個新頁面中顯示其內容,但是我希望在同一html頁面中顯示文件內容,而無需打開新標簽並刷新,如何顯示實現那個?
HTML:
<html>
<body>
<form action="upload_file.php" method="post"
enctype="multipart/form-data">
<label for="file">Filename:</label>
<input type="file" name="file" id="file"><br>
<input type="submit" name="submit" value="Submit">
</form>
</body>
</html>
PHP:upload_file.php
<?php
if ($_FILES["file"]["error"] > 0)
{
echo "Error: " . $_FILES["file"]["error"] . "<br>";
}
else
{
echo "Upload: " . $_FILES["file"]["name"] . "<br>";
echo "Type: " . $_FILES["file"]["type"] . "<br>";
echo "Size: " . ($_FILES["file"]["size"] / 1024) . " kB<br>";
echo "Stored in: " . $_FILES["file"]["tmp_name"];
}
?>
您可以使用php檢查是否單擊了提交按鈕,然后繼續顯示數據。
PHP:upload.php
<?php
//checks if the submit button is submitted
if(isset($_POST['submit']) && $_POST['submit'] == "Submit") {
if ($_FILES["file"]["error"] > 0) {
echo "Error: " . $_FILES["file"]["error"] . "<br>";
}
else {
echo "Upload: " . $_FILES["file"]["name"] . "<br>";
echo "Type: " . $_FILES["file"]["type"] . "<br>";
echo "Size: " . ($_FILES["file"]["size"] / 1024) . " kB<br>";
echo "Stored in: " . $_FILES["file"]["tmp_name"];
}
}
?>
<html>
<body>
<form action="upload.php" method="post" enctype="multipart/form-data">
<label for="file">Filename:</label>
<input type="file" name="file" id="file"><br>
<input type="submit" name="submit" value="Submit">
</form>
</body>
</html>
您可以使用iframe
html
<html>
<body>
<script>
function ajaxFileUpload(upload_field)
{
var filename = upload_field.value;
upload_field.form.action = 'upload_file.php';
upload_field.form.target = 'upload_iframe';
upload_field.form.submit();
return true;
}
</script>
<iframe name="upload_iframe" id="upload_iframe" ></iframe>
<form action="#" method="post" enctype="multipart/form-data">
<label for="file">Filename:</label>
<input type="file" name="file" id="file" onchange="return ajaxFileUpload(this);">
</form>
</body>
</html>
upload_file.php
<?php
if ($_FILES["file"]["error"] > 0)
{
echo "Error: " . $_FILES["file"]["error"] . "<br>";
}
else
{
echo "Upload: " . $_FILES["file"]["name"] . "<br>";
echo "Type: " . $_FILES["file"]["type"] . "<br>";
echo "Size: " . ($_FILES["file"]["size"] / 1024) . " kB<br>";
echo "Stored in: " . $_FILES["file"]["tmp_name"]. " <br>";
$content = file_get_contents($_FILES["file"]["tmp_name"]);
echo "Content: ".$content;
}
?>
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