Generate Random Lorem Ipsum in PHP

Text.php

<?php

abstract class Text {
  public static function characters($nCharacters = 1) {
    $words = self::$words;
    $characters = '';
    while (strlen($characters) < $nCharacters) {
      $characters .= self::words() . ' ';
    }
    $characters = substr($characters, 0, $nCharacters);
    return $characters;
  }

  public static function words($nWords = 1, $comma = false) {
    $words = self::$words;
    $output = '';
    for ($i = 0; $i < $nWords; $i++) {
      $separator = $comma ? self::wordSeparator() : ' ';
      $output .= $words[array_rand($words)] . $separator;
    }
    return ucfirst(rtrim($output, ', '));
  }

  public static function sentences($nSentences = 1) {
    $sentences = [];
    $words = rand(3, 15);
    
    for ($ns = 0; $ns < $nSentences; $ns++) {
      $sentences[] = ucfirst(trim(self::words($words, true))) . self::endPunctuation();
    }

    return implode(' ', $sentences);
  }

  public static function paragraphs($nParagraphs = 1) {
    $paragraphs = [];
    $sentences = rand(3, 10);
    
    for ($np = 0; $np < $nParagraphs; $np++) {
      $paragraphs[] = '<p>' . trim(self::sentences($sentences)) . '</p>';
    }

    return implode(' ', $paragraphs);
  }


  private static function weightedRandom($array) {
    $total = 0;
    foreach ($array as $item) {
      $total += $item['weight'];
    }
    $random = (float)mt_rand() / (float)mt_getrandmax() * $total;
    $current = 0;
    foreach ($array as $item) {
      $current += $item['weight'];
      if ($random <= $current) {
        return $item['value'];
      }
    }
  }

  private static function endPunctuation() {
    $punctuation = [
      'period' => [
        'weight' => 0.8,
        'value' => '.'
      ],
      'question' => [
        'weight' => 0.1,
        'value' => '?'
      ],
      'exclamation' => [
        'weight' => 0.1,
        'value' => '!'
      ]
    ];
    
    return self::weightedRandom($punctuation);
  }

  private static function wordSeparator() {
    $punctuation = [
      'comma' => [
        'weight' => 0.1,
        'value' => ', '
      ],
      'space' => [
        'weight' => 0.9,
        'value' => ' '
      ]
    ];

    return self::weightedRandom($punctuation);
  }

  private static $words = ['lorem', 'ipsum', 'dolor', 'sit', 'amet', 'consectetur', 'adipiscing', 'elit', 'praesent', 'interdum', 'dictum', 'mi', 'non', 'egestas', 'nulla', 'in', 'lacus', 'sed', 'sapien', 'placerat', 'malesuada', 'at', 'erat', 'etiam', 'id', 'velit', 'finibus', 'viverra', 'maecenas', 'mattis', 'volutpat', 'justo', 'vitae', 'vestibulum', 'metus', 'lobortis', 'mauris', 'luctus', 'leo', 'feugiat', 'nibh', 'tincidunt', 'a', 'integer', 'facilisis', 'lacinia', 'ligula', 'ac', 'suspendisse', 'eleifend', 'nunc', 'nec', 'pulvinar', 'quisque', 'ut', 'semper', 'auctor', 'tortor', 'mollis', 'est', 'tempor', 'scelerisque', 'venenatis', 'quis', 'ultrices', 'tellus', 'nisi', 'phasellus', 'aliquam', 'molestie', 'purus', 'convallis', 'cursus', 'ex', 'massa', 'fusce', 'felis', 'fringilla', 'faucibus', 'varius', 'ante', 'primis', 'orci', 'et', 'posuere', 'cubilia', 'curae', 'proin', 'ultricies', 'hendrerit', 'ornare', 'augue', 'pharetra', 'dapibus', 'nullam', 'sollicitudin', 'euismod', 'eget', 'pretium', 'vulputate', 'urna', 'arcu', 'porttitor', 'quam', 'condimentum', 'consequat', 'tempus', 'hac', 'habitasse', 'platea', 'dictumst', 'sagittis', 'gravida', 'eu', 'commodo', 'dui', 'lectus', 'vivamus', 'libero', 'vel', 'maximus', 'pellentesque', 'efficitur', 'class', 'aptent', 'taciti', 'sociosqu', 'ad', 'litora', 'torquent', 'per', 'conubia', 'nostra', 'inceptos', 'himenaeos', 'fermentum', 'turpis', 'donec', 'magna', 'porta', 'enim', 'curabitur', 'odio', 'rhoncus', 'blandit', 'potenti', 'sodales', 'accumsan', 'congue', 'neque', 'duis', 'bibendum', 'laoreet', 'elementum', 'suscipit', 'diam', 'vehicula', 'eros', 'nam', 'imperdiet', 'sem', 'ullamcorper', 'dignissim', 'risus', 'aliquet', 'habitant', 'morbi', 'tristique', 'senectus', 'netus', 'fames', 'nisl', 'iaculis', 'cras', 'aenean', 'i'];
}