如何在php中重命名子文件夹

Question

I have created a folder using php whenever a new client creates a business name

$sql = "INSERT INTO kd_aboutus (business, category, subcategory, content, uafk, datein) VALUES ('$bn','$cat','$scat','$descr','$userID',now())";
    $run_sql = mysqli_query($conn, $sql);

    if (!file_exists("user/$bn")) {
        mkdir("user/$bn", 0755);
    }

Now my problem is when the user wants to edit his or her business name, I also need to rename their folder which they had already created. How am I supposed to do this. This is my code in the edit file

$sql = "UPDATE kd_aboutus SET business='$bn', category='$cat', subcategory='$scat', content='$descr' WHERE aboutID='$targetID'";
    $run_sql = mysqli_query($conn, $sql);

Answer 1

You will need the rename function. Note that the minimum parameters are string $oldname , string $newname , so you will need to load the current name before changing the record in the database.

Example

<?php

$query = "SELECT business FROM kd_aboutus WHERE aboutID='$targetID'";

if ($result = $mysqli->query($query)) {
    $row = $result->fetch_assoc();
    if (!empty($row['business'])) {
        $oldBn = $row['business'];
        rename("user/$oldBn", "user/$bn");

        $sql = "UPDATE kd_aboutus SET business='$bn', category='$cat', subcategory='$scat', content='$descr' WHERE aboutID='$targetID'";
        $run_sql = mysqli_query($conn, $sql);
    }
}

The above is untested but should illustrate the sort of thing you'll need to achieve.

Answer 2

You will first have to get current folder name before renaming it.

SELECT business FROM kd_aboutus WHERE aboutID='$targetID';

Get the result of above query in a variable. Let's say $oldbn

Then, rename the folder as:

rename("user/$oldbn", "user/$bn");

$sql = "UPDATE kd_aboutus SET business='$bn', category='$cat', subcategory='$scat', content='$descr' WHERE aboutID='$targetID'";
$run_sql = mysqli_query($conn, $sql);

Answer 3

PHP具有重命名文件夹/文件的功能： http : //php.net/manual/en/function.rename.php

rename(oldname,newname[,context])