upload file with php and save path to sql
Does anyone know any good tutorial on how to upload a file with php and save the fi开发者_运维技巧les path to a sql server?
To upload a file you need at least a HTML POST form with multipart/form-data encoding. Therein you put an input type="file" field to browse the file and a submit button to submit the form.
<form action="upload.php" method="post" enctype="multipart/form-data">
<input type="file" name="file">
<input type="submit">
</form>
In the upload.php the uploaded file is accesible by $_FILES with the field name as key.
$file = $_FILES['file'];
You can get its name as follows:
$name = $file['name'];
You need to move it to a permanent location using move_uploaded_file(), else it will get lost:
$path = "/uploads/" . basename($name);
if (move_uploaded_file($file['tmp_name'], $path)) {
// Move succeed.
} else {
// Move failed. Possible duplicate?
}
You can store the path in database the usual way:
$sql = "INSERT INTO file (path) VALUES ('" . mysqli_real_escape_string($path) . "')";
// ...
From http://www.w3schools.com/php/php_file_upload.asp
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
<?php
if ($_FILES["file"]["error"] > 0)
{
echo "Return Code: " . $_FILES["file"]["error"] . "<br />";
}
else
{
if (file_exists("upload/" . $_FILES["file"]["name"]))
{
echo $_FILES["file"]["name"] . " already exists. ";
}
else
{
move_uploaded_file($_FILES["file"]["tmp_name"],
"upload/" . $_FILES["file"]["name"]);
echo "Stored in: " . "upload/" . $_FILES["file"]["name"]; //<- This is it
}
}
?>
Note that to upload the file you need to specify the path to save the file. If you save the file you already know it path.
加载中,请稍侯......
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