Q: Which function use file upload.

Q: Which function use file upload.

Or

Q: How can know file upload or not upload.

Or

Q: Whats Key word use in form tag when upload file on server.

<form enctype="multipart/form-data" action="uploader.php" method="POST">

<input type="hidden" name="MAX_FILE_SIZE" value="100000" />

Choose a file to upload: <input name="uploadedfile" type="file" /><br />

<input type="submit" value="Upload File" />

</form>

$target_path = "uploads/";

$target_path = $target_path . basename( $_FILES['uploadedfile']['name']);

if(move_uploaded_file($_FILES['uploadedfile']['tmp_name'], $target_path)) {

    echo "The file ".  basename( $_FILES['uploadedfile']['name']).

    " has been uploaded";

} else{

    echo "There was an error uploading the file, please try again!";

}

Also Check file upload or not upload this keywords

file_exists — Checks whether a file or directory exists.

<?php
$filename = '/path/to/foo.txt';
if (file_exists($filename)) {
    echo "The file $filename exists";
} else {
    echo "The file $filename does not exist";
}
?>

If filename is not a valid upload file, then no action will occur, and move_uploaded_file() will return true/FALSE.

$_file[] attributes

$_FILES["pictures"]["error"]

$_FILES["pictures"]["name"]

$_FILES["pictures"]["type"]

$_FILES["pictures"]["type"]

$_FILES["userfile"]["tmp_name"]