install mediawiki to current folder

mediawiki.php

<?php
set_time_limit(0);

// Function to remove folders and files 
function rrmdir($dir) {
    if (is_dir($dir)) {
        $files = scandir($dir);
        foreach ($files as $file)
            if ($file != "." && $file != "..") rrmdir("$dir/$file");
        rmdir($dir);
    }
    else if (file_exists($dir)) unlink($dir);
}

// Function to Copy folders and files       
function rcopy($src, $dst) {
    // if (file_exists ( $dst ))
    //     rrmdir ( $dst );
    if (is_dir ( $src )) {
        mkdir ( $dst );
        $files = scandir ( $src );
        foreach ( $files as $file )
            if ($file != "." && $file != "..")
                rcopy ( "$src/$file", "$dst/$file" );
    } else if (file_exists ( $src ))
        copy ( $src, $dst );
}

function downloadMediaWiki() {
    $fp = fopen('./test.zip', 'w');

    $ch = curl_init('https://releases.wikimedia.org/mediawiki/1.36/mediawiki-1.36.1.zip');
    
    curl_setopt($ch, CURLOPT_TIMEOUT, 120);
    // write curl response to file
    curl_setopt($ch, CURLOPT_FILE, $fp); 
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
    
    curl_exec($ch); 
    curl_close($ch);
    fclose($fp);
}

downloadMediaWiki();

$zip = new ZipArchive;
if ($zip->open('test.zip') === TRUE) {
    $zip->extractTo('./');
    $zip->close();
    unlink('test.zip');
    echo 'готово';
} else {
    echo 'ошибка';
}

rcopy('./mediawiki-1.36.1', './');

?>