[英]Blank page on submit button
I have some troubles with my html page. 我的html页面有些麻烦。 I want it to reload after pressing the submit button.
我希望它在按下提交按钮后重新加载。 I tried reloading it with javascript but it keeps on giving me a white page (after saving the data I need in a file).
我尝试用javascript重新加载它,但是它继续为我提供白页(在文件中保存了我需要的数据之后)。
Here is the html code: 这是html代码:
<html>
<head>
<title>Sample Web Form</title>
</head>
<body>
<h1>Fill Out This Form</h1>
<form action="myprocessingscript.php" method="POST">
<p><i>Choose one or more of the available options that represent the current mental state of the System:</i></p>
<input type="checkbox" name="mentalState[]" value="Knows user culture"> Knows User Culture<br>
<input type="checkbox" name="mentalState[]" value="Knows concept "> Knows Concept<br>
<input type="checkbox" name="mentalState[]" value="Knows that user knows concept"> Knows that User Knows Concept<br>
<p><i>Choose the corresponding action:</i></p>
<input type="checkbox" name="action" value="cultureIdentif"> Culture Identification<br>
<input type="checkbox" name="action" value="conceptIdentif"> Concept Identification<br>
<p><i>Choose one or more of the available options that represent the current mental state of the System following the action:</i></p>
<input type="checkbox" name="mentalState2[]" value="Knows user culture"> Knows User Culture<br>
<input type="checkbox" name="mentalState2[]" value="Knows concept"> Knows Concept<br>
<input type="checkbox" name="mentalState2[]" value="Knows that user knows concept"> Knows that User Knows Concept<br>
</br>
<input type="submit" value="Save Data">
</form>
</body>
</html>
here is the php code: 这是PHP代码:
<?php
if(!empty($_POST['mentalState'])){
// Loop to store and display values of individual checked checkbox.
foreach($_POST['mentalState'] as $mentalState)
($mentalState1=$mentalState . ',' . $mentalState1);
}
if(!empty($_POST['mentalState2'])){
// Loop to store and display values of individual checked checkbox.
foreach($_POST['mentalState2'] as $mentalState)
($mentalState2=$mentalState . ',' . $mentalState2);
}
if(isset($mentalState1) && isset($_POST['action']) && isset($mentalState2)) {
$data = $mentalState1 . '-' . $_POST['action'] . '-' . $mentalState2 . "\n";
$ret = file_put_contents('matrix.txt', $data, FILE_APPEND | LOCK_EX);
if($ret === false) {
die('There was an error writing this file');
}
} else {
die('no post data to process');
}
Thanks for your help! 谢谢你的帮助!
I think you are missing one condition here 我认为您在这里缺少一种情况
you have only 你只有
if($ret === false) {
die('There was an error writing this file');
}
try to add the else and see 尝试添加其他并查看
if($ret === false) {
die('There was an error writing this file');
} else {
header('Location: ' . $_SERVER['HTTP_REFERER']);
}
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