Construct Converter

construct.php

<?php
/**
 * this file will run a function to read your php files, search for a constructor method and change:
 * - public function NameOfClass
 * to
 * - public function __construct
 *
 * usage: php ./construct.php -d=/home/me/php/src -s=warning
 */

if (isset($argv[1])) {

    $parameters = parseParameters($argv);

    if (isset($parameters['-d'])) {

        $dir = realpath($parameters['-d']);
        $show = isset($parameters['-s']) ? $parameters['-s'] : 'all';

        convertConstruct($dir, $show);
    }
}

/**
 * @param string $dir
 * @param string $show
 * @return null
 */
function convertConstruct(string $dir, string $show = 'all')
{
    if (!is_dir($dir)) {
        return null;
    }

    $files = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($dir), RecursiveIteratorIterator::SELF_FIRST);

    foreach ($files as $file) {
        if (is_dir($file->getFilename())) {
            continue;
        } else {
            if (strpos($file->getFilename(), '.php') !== false) {
                constructor($dir, $file->getPathname(), $show);
            }
        }
    }
}

/**
 * @param $dir
 * @param $filename
 * @param $show
 */
function constructor($dir, $filename, $show)
{
    $lines = explode(PHP_EOL, file_get_contents($filename));

    $class = '';
    $constructor = false;
    foreach ($lines as $key => $line) {

        $_line = trim($line);

        if (strpos($_line, 'class') === 0) {
            $peaces = explode(' ', str_replace('{', '', $_line));
            if (isset($peaces[1])) {
                $class = $peaces[1];
            }
        }

        if ($class && strpos($_line, 'function') !== false) {

            if (strpos($_line, '__construct') !== false) {
                $constructor = true;
                break;
            }
            $constructor = strpos($_line, ' ' . $class) !== false;
            if ($constructor) {
                $changed = true;
                $lines[$key] = str_replace(' ' . $class, ' __construct', $lines[$key]);
                break;
            }
        }
    }
    if ($class) {
        $print = $show === 'ok' || $show === 'all';

        $relative = str_replace($dir, '', $filename);
        $message = "[ok]";
        if (!$constructor) {
            $message = "[warning] {$class} do not have constructor";
            $print = $show === 'warning' || $show === 'all';
        }

        if ($print) {
            echo "{$relative}: {$message}\n";
        }
    }

    if (isset($changed)) {
        file_put_contents($filename, implode(PHP_EOL, $lines));
    }
}

/**
 * @param $argv
 * @return array
 */
function parseParameters(array $argv): array
{
    $parameters = [];
    foreach ($argv as $arg) {
        $in = explode("=", $arg);
        if (count($in) == 2) {
            $parameters[$in[0]] = $in[1];
        } else {
            $parameters[$in[0]] = 0;
        }
    }
    return $parameters;
}