How to change file name and suffix in php

1. Preface
When using PHP to perform file operations, sometimes you need to change the file name or suffix. This article will introduce in detail the techniques of using PHP to change the file name and suffix.

2. Change the file name
Changing the file name is simple and clear, just use the rename function, the syntax is as follows:

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

Among them, $oldname represents the original file name, $newname represents the new file name, and $context represents the open_wrappers context, which is an optional parameter.

The sample code is as follows:

$oldname = 'oldname.txt';
$newname = 'newname.txt';

if (rename($oldname, $newname)) {

echo "文件名更改成功！";

} else {

echo "文件名更改失败！";

}

3. Change the file suffix name
It is also very simple to change the file suffix name. You only need to Just replace the original suffix in the file name with the new suffix. For example, change the file name from abc.txt to abc.html, the code is as follows:

$oldname = 'abc.txt';
$newname = str_replace('.txt', '.html', $oldname);

if (rename($oldname, $newname)) {

echo "后缀名更改成功！";

} else {

echo "后缀名更改失败！";

}

4. Summary
Through this article, I believe that readers have mastered the skills of using PHP to change file names and suffixes, and can use them flexibly in actual development. It should be noted that when the file name and suffix name are changed, problems such as duplicate names must be avoided. It is recommended to check before changing to ensure that the changed file name or suffix name is unique.

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