How to increment the filename if file already exists in PHP?

Today, We want to share with you How to increment the filename if file already exists in PHP?.In this post we will show you php check if file exists at url, hear for PHP upload file and rename if already exist we will give you demo and example for implement.In this post, we will learn about Check if a file exists and rename another file if the file exists with an example.

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How to increment the filename if file already exists in PHP?

There are the Following The simple About php – upload and increment filename Full Information With Example and source code.

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As I will cover this Post with live Working example to develop how to rename the file if already exists in php, so the some major files and Directory structures for this example is following below.

Check if File Exists / Append Number to Name

If the your file name exists, then returns new fresh file name with uniq _number appended so you donโ€™t overwrite it.


function file_newname($path, $your_filename){
    if ($pos = strrpos($your_filename, '.')) {
           $name = substr($your_filename, 0, $pos);
           $ext = substr($your_filename, $pos);
    } else {
           $name = $your_filename;

    $newpath = $path.'/'.$your_filename;
    $tmp_name = $your_filename;
    $uniq_no = 0;
    while (file_exists($newpath)) {
           $tmp_name = $name .'_'. $uniq_no . $ext;
           $newpath = $path.'/'.$tmp_name;

    return $tmp_name;

Example returns:


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