How to change the name of a file in php

In PHP, you can use the rename() function to modify the name of a file. This function can rename a file or directory. The syntax is "rename (file name to be modified, new file name)"; if Returns TRUE if the modification is successful, and FALSE if the modification fails.

The operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

In PHP, you can use the rename() function to change the name of the file.

Example: There is a text file named "test.txt"

Now I want to modify it to "newtest.txt" , we can use the following code:

<?php
header("Content-type:text/html;charset=utf-8");
$file = &#39;test.txt&#39;;
if(file_exists($file)){
    if(rename($file,&#39;newtest.txt&#39;)){
        echo $file.&#39; 重命名成功！&#39;;
    }else{
        echo $file.&#39; 重命名失败！&#39;;
    }
}else{
    echo $file.&#39; 不存在！&#39;;
}
?>

Output results:

Open the folder and look at the files:

OK modification successful! Let’s take a brief look at the rename() function:

The rename() function can rename a file or directory. It returns TRUE when successful and FALSE when failed. The syntax format of this function is as follows:

rename(string $oldname, string $newname[, resource $context])

Among them, $oldname is the file name to be modified; $newname is the new file name; $context is an optional parameter, used to specify the environment of the file handle. $context is a set of options that can modify the behavior of the stream.

There are the following points to note when using the rename() function:

• For non-empty folders, they can only be moved under the same drive letter;

• For empty folders, rename() can move between different drive letters. But the parent directory of the target folder must exist;

• For files, rename() can also move between different drive letters.

Recommended learning: "PHP Video Tutorial"

The above is the detailed content of How to change the name of a file in php. For more information, please follow other related articles on the PHP Chinese website!