PHP command line library

PHP_CMD.php

<?php

/**
 * Prompts for a password on the commandline
 * characters are not visible while the user types
 * 
 * @param string $prompt    (optional default to "Enter Password:") the text inviting the user to enter the password
 * 
 * @return string       the password entered
 * 
 */
function read_password($prompt = "Enter Password:") {
    if (preg_match('/^win/i', PHP_OS)) {
      $vbscript = sys_get_temp_dir() . 'prompt_password.vbs';
      file_put_contents(
        $vbscript, 'wscript.echo(InputBox("'
        . addslashes($prompt)
        . '", "", "password here"))');
      $command = "cscript //nologo " . escapeshellarg($vbscript);
      $password = rtrim(shell_exec($command));
      unlink($vbscript);
      return $password;
    } else {
      $command = "/usr/bin/env bash -c 'echo OK'";
      if (rtrim(shell_exec($command)) !== 'OK') {
        trigger_error("Can't invoke bash");
        return;
      }
      $command = "/usr/bin/env bash -c 'read -s -p \""
        . addslashes($prompt)
        . "\" mypassword && echo \$mypassword'";
      $password = rtrim(shell_exec($command));
      echo "\n";
      return $password;
    }
}


/**
 * Enable colors in shell echo
 */
function sqd_echo() {
    // see https://stackoverflow.com/questions/34034730/how-to-enable-color-for-php-cli/34034922
    $patterns = ['/\@(default|white)\s?/', '/\@red\s?/', '/\@green\s?/', '/\@yellow\s?/', '/\@blue\s?/', '/\@magenta\s?/', '/\@cyan\s?/'];
    $replacements = ["\033[39m", "\033[31m", "\033[32m", "\033[33m", "\033[34m", "\033[35m", "\033[36m"];
    echo "\033[39m";
    foreach (func_get_args() as $arg) {
        if (gettype($arg) != 'string') $arg = json_encode($arg, JSON_PRETTY_PRINT);
        $arg = preg_replace($patterns, $replacements, $arg);
        echo $arg." ";
    }
    echo "\n";
}