这是文件upload.php。当我尝试提交HTML表单并获取stateCode的值时，它会引发未指定的索引错误，请参阅附件屏幕快照
<html>
<body>
<?php
$target_dir = getcwd().DIRECTORY_SEPARATOR."/files/";
$target_file = $target_dir . basename($_FILES["fileToUpload"]
["name"]);
$dst = $target_file;
$uploadOk = 1;
echo $_POST['stateCode'] ;
$imageFileType = pathinfo($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"] > 500000) {
echo "Sorry, your file is too large.";
$uploadOk = 0;
}
// Allow certain file formats
if($imageFileType != "xls" && $imageFileType != "xlsx" ) {
echo "Sorry, only Excel 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)) {
echo "The file ". basename( $_FILES["fileToUpload"]["name"]). " has been uploaded.";
} else {
echo "Sorry, there was an error uploading your file.";
}
}
?>
</body>
</html>
以下是welcome.html，每当我尝试提交此表格时，我都会收到以下错误。
<!DOCTYPE html>
<html>
<style>
#form {
background-color: #FFF;
height: 600px;
width: 600px;
margin-right: auto;
margin-left: auto;
margin-top: 0px;
border-top-left-radius: 10px;
border-top-right-radius: 10px;
padding: 0px;
text-align:center;
}
label {
font-family: Georgia, "Times New Roman", Times, serif;
font-size: 18px;
color: #333;
height: 35px;
width: 200px;
margin-top: 18px;
margin-left: 10px;
text-align: right;
margin-right:15px;
float:left;
}
iframe {
height:35px;
width: 300px;
margin-top:14px;
}
button{
margin-top: 18px;
}
</style>
<script>
var dvalues='';
function myFunction(){
var iframe = document.getElementById('frame');
var innerDoc = iframe.contentDocument || iframe.contentWindow.document;
var b =innerDoc.body;
var c = b.childNodes;
var dvalues = b.childNodes[0].value;
document.getElementById("placeholder").innerHTML =dvalues;
}
window.onload = function(){
document.getElementById("placeholder").innerHTML=dvalues;
};
</script>
<body>
<div id = "form">
<form action="upload.php" method="post" enctype="multipart/form-data">
<fieldset>
<div class="form-group">
<label for="States" name ="states">States:</label>
<iframe id ="frame" name="myPHPScript" src="myScript.php" width="100%" frameborder="0"></iframe>
<p id = "placeholder" name="stateCode"></p>
<input type="file" name="fileToUpload" id="fileToUpload" /><input type="submit" name="action"onclick="myFunction()"/>
</div>
</fieldset>
</form>
</div>
</body>
</html>
<!DOCTYPE html>
<html>
<style>
#form {
background-color: #FFF;
height: 600px;
width: 600px;
margin-right: auto;
margin-left: auto;
margin-top: 0px;
border-top-left-radius: 10px;
border-top-right-radius: 10px;
padding: 0px;
text-align:center;
}
label {
font-family: Georgia, "Times New Roman", Times, serif;
font-size: 18px;
color: #333;
height: 35px;
width: 200px;
margin-top: 18px;
margin-left: 10px;
text-align: right;
margin-right:15px;
float:left;
}
iframe {
height:35px;
width: 300px;
margin-top:14px;
}
button{
margin-top: 18px;
}
</style>
<script>
var dvalues='';
function myFunction(){
var iframe = document.getElementById('frame');
var innerDoc = iframe.contentDocument || iframe.contentWindow.document;
var b =innerDoc.body;
var c = b.childNodes;
var dvalues = b.childNodes[0].value;
document.getElementById("placeholder").innerHTML =dvalues;
}
window.onload = function(){
document.getElementById("placeholder").innerHTML=dvalues;
};
</script>
<body>
<div id = "form">
<form action="upload.php" method="post" enctype="multipart/form-data">
<fieldset>
<div class="form-group">
<label for="States" name ="states">States:</label>
<iframe id ="frame" name="myPHPScript" src="myScript.php" width="100%" frameborder="0"></iframe>
<p id = "placeholder"></p>
<input type="text" name="stateCode" />
<input type="file" name="fileToUpload" id="fileToUpload" /><input type="submit" name="action"onclick="myFunction()"/>
</div>
</fieldset>
</form>
</div>
</body>
</html>
将P修复到输入类型文本中。不确定您实际打算的类型是什么，但这应该使您运行。