I'm trying to require a file upload in a form, but cannot get it to work. Any ideas? I'd rather echo the php error on the page vs. a javascript popup. Thanks for taking a look:
<?php
// initialize $file1
$file1 = $_POST['file1'];
// check upload of $file1
if ($file1 == '' ) {
$error = "Please upload an image";
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Require upload of an file</title>
</head>
<body>
<?php if ($error) {echo $error;} ?>
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<form id="form1" name="form1" method="post" action="nextpage.php">
<input type="file" size="8" name="file1" />
<input name="Submit" type="Submit" />
</form>
</body>
</html>
See this tutorial it have all that you need.
To sum up:
- Use
enctype="multipart/form-data"andmethod="POST"in the<form>tag. - In PHP use
$_FILES['uploadedfile']['name']to read original name ("uploadedfile" is the name of your file input - "file1" in your example). - In PHP use
$_FILES['uploadedfile']['tmp_name']to read server side temp file name. - In PHP use
$_FILES['uploadedfile']['error']to get the error (if any) see there for possible codes. - Also see the PHP manual for more info.
In your exemple use this form instead:
<form id="form1" name="form1" method="post" action="nextpage.php" enctype="multipart/form-data">
<input type="file" size="8" name="file1" />
<input name="Submit" type="Submit" />
</form>
In "nextpage.php":
//Use $_FILES['file1'] to check the file upload...
print_r($_FILES['file1']);
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
加载中,请稍侯......
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