A wrapper for phpstan, so you can use PHP7.0 and PHP7.1

check_code_phpstan.php

#!/usr/bin/php
<?php

use Composer\XdebugHandler\XdebugHandler;

require_once __DIR__ . '/YOUR_PATH_THE_AUTOLOADER.php';

$xdebug = new XdebugHandler('phpstan-code-check');
$xdebug->check();
unset($xdebug);

if (isset($argv[1])) {
    $FILES = $argv[1];
} else {
    $FILES = '.';
}

if (isset($argv[2])) {
    $LEVEL = $argv[2];
} else {
    $LEVEL = '2';
}

if (isset($argv[3])) {
    $CONFIG = $argv[3];
} else {
    $CONFIG = __DIR__ . '/YOUR_PATH_TO_THE_CONFIG_DIR/phpstan_legacy.neon';
}

if (isset($argv[4])) {
    $EXTRA_DEBUG_TEXT = $argv[4];
} else {
    $EXTRA_DEBUG_TEXT = '';
}

check_code_phpstan($FILES, $LEVEL, $CONFIG, $EXTRA_DEBUG_TEXT);

/**
 * @return string
 */
function get_newest_local_php_version(): string {
    $phpCmd = 'php';
    for ($i = 2; $i > 0; $i--) {
        $phpCmdTmp = 'php7.' . $i;
        if (shell_command_exist($phpCmdTmp)) {
            return $phpCmdTmp;
        }
    }
    for ($i = 6; $i > 0; $i--) {
        $phpCmdTmp = 'php5.' . $i;
        if (shell_command_exist($phpCmdTmp)) {
            return $phpCmdTmp;
        }
    }

    return $phpCmd;
}

/**
 * @param string $FILES
 * @param string $LEVEL
 * @param string $CONFIG
 * @param string $EXTRA_DEBUG_TEXT
 */
function check_code_phpstan($FILES, $LEVEL, $CONFIG, $EXTRA_DEBUG_TEXT) {
    $newest_local_php_version = get_newest_local_php_version();

    if ($newest_local_php_version >= 'php7.1') {
        $phpstan_phar = 'phpstan_php7_1.phar';
    } else {
        $phpstan_phar = 'phpstan_php7_0.phar';
    }

    echo 'Running PhpStan [' . $phpstan_phar . '] ' . ($EXTRA_DEBUG_TEXT ? '(' . $EXTRA_DEBUG_TEXT . ')' : '') . ' ...' . "\n";
    // https://github.com/phpstan/phpstan
    $phpstan_cmd = $newest_local_php_version . ' ' . 'YOUR_PATH_THE_VENDOR_DIR/' . $phpstan_phar . ' analyse \
            --level ' . $LEVEL . ' \
            --memory-limit 4G \
            --no-progress \
            --configuration ' . $CONFIG . ' \
            ' . $FILES . '
            ';

    // DEBUG
    // echo "\n" . "command: " . $phpstan_cmd . "\n";

    exec($phpstan_cmd, $phpstan_output, $return);

    if ($return != 0) {
        echo print_r($phpstan_output, true) . "\n"
             . 'PhpStan [' . $return . ']: ¯\(°_o)/¯ Please fix the code smells...' . "\n";
        exit($return);
    }

}

exit(0);