Using PHP rename() Function to Rename Files and Directories

In PHP, the rename() function is used to rename a file or directory, providing a straightforward method to change its name by specifying the source and target names.

Syntax: bool rename ( string $source , string $target ) Parameters: $source: required, the name of the source file or directory. $target: required, the name of the destination file or directory.

Return value:

Returns TRUE on success and FALSE on failure.

Example – renaming a file:

<?php
$old_name = "old_file.txt";
$new_name = "new_file.txt";

if (rename($old_name, $new_name)) {
    echo "文件重命名成功！";
} else {
    echo "文件重命名失败！";
}
?>

Example – renaming a directory:

<?php
$old_name = "old_directory";
$new_name = "new_directory";

if (rename($old_name, $new_name)) {
    echo "目录重命名成功！";
} else {
    echo "目录重命名失败！";
}
?>

Note: The rename() function may be restricted by filesystem permissions; ensure you have sufficient rights. If the source file or directory does not exist, the function returns FALSE.

Summary: The rename() function is a powerful PHP tool for renaming files and directories, allowing developers to change names simply by providing source and target paths.