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/includes/functions.inc.php

http://github.com/tylerhall/simple-php-framework
PHP | 779 lines | 657 code | 73 blank | 49 comment | 117 complexity | ad65c8cb985c42895e9fda75b96d2e96 MD5 | raw file
    

  1. <?PHP
    2. 

  2. 

  3.     function dater_utc($seconds = null) 
    4. 

  4.     {
    5. 

  5.         if($seconds === null) {
    6. 

  6.             $seconds = time();
    7. 

  7.         }
    8. 

  8.         $dt = new DateTime('@' . $seconds);
    9. 

  9.         $dt->setTimezone(new DateTimeZone('UTC'));
    10. 

  10.         return $dt->format('Y-m-d H:i:s');
    11. 

  11.     }
    12. 

  12. 

  13. 	function twitterfy($str)
    14. 

  14. 	{
    15. 

  15. 	    // Via http://www.snipe.net/2009/09/php-twitter-clickable-links/
    16. 

  16. 	    $str = preg_replace("#(^|[\n ])([\w]+?://[\w]+[^ \"\n\r\t< ]*)#", "\\1<a href=\"\\2\" target=\"_blank\">\\2</a>", $str);
    17. 

  17. 	    $str = preg_replace("#(^|[\n ])((www|ftp)\.[^ \"\t\n\r< ]*)#", "\\1<a href=\"http://\\2\" target=\"_blank\">\\2</a>", $str);
    18. 

  18. 	    $str = preg_replace("/@(\w+)/", "<a href=\"http://www.twitter.com/\\1\" target=\"_blank\">@\\1</a>", $str);
    19. 

  19. 	    $str = preg_replace("/#(\w+)/", "<a href=\"http://search.twitter.com/search?q=\\1\" target=\"_blank\">#\\1</a>", $str);
    20. 

  20. 	    return $str;
    21. 

  21. 	}
    22. 

  22. 

  23. 	function set_option($key, $val)
    24. 

  24. 	{
    25. 

  25. 		$db = Database::getDatabase();
    26. 

  26. 		$db->query('REPLACE INTO options (`key`, `value`) VALUES (:key, :value)', array('key' => $key, 'value' => $val));
    27. 

  27. 	}
    28. 

  28. 

  29. 	function get_option($key, $default = null)
    30. 

  30. 	{
    31. 

  31. 		$db = Database::getDatabase();
    32. 

  32. 		$db->query('SELECT `value` FROM options WHERE `key` = :key', array('key' => $key));
    33. 

  33. 		if($db->hasRows())
    34. 

  34. 			return $db->getValue();
    35. 

  35. 		else
    36. 

  36. 			return $default;
    37. 

  37. 	}
    38. 

  38. 

  39.     function printr($var)
    40. 

  40.     {
    41. 

  41.         $output = print_r($var, true);
    42. 

  42.         $output = str_replace("\n", "<br>", $output);
    43. 

  43.         $output = str_replace(' ', '&nbsp;', $output);
    44. 

  44.         echo "<div style='font-family:courier;'>$output</div>";
    45. 

  45.     }
    46. 

  46. 

  47.     // Formats a given number of seconds into proper mm:ss format
    48. 

  48.     function format_time($seconds)
    49. 

  49.     {
    50. 

  50.         return floor($seconds / 60) . ':' . str_pad($seconds % 60, 2, '0');
    51. 

  51.     }
    52. 

  52. 

  53.     // Given a string such as "comment_123" or "id_57", it returns the final, numeric id.
    54. 

  54.     function split_id($str)
    55. 

  55.     {
    56. 

  56.         return match('/[_-]([0-9]+)$/', $str, 1);
    57. 

  57.     }
    58. 

  58. 

  59.     // Creates a friendly URL slug from a string
    60. 

  60.     function slugify($str)
    61. 

  61.     {
    62. 

  62.         $str = preg_replace('/[^a-zA-Z0-9 -]/', '', $str);
    63. 

  63.         $str = strtolower(str_replace(' ', '-', trim($str)));
    64. 

  64.         $str = preg_replace('/-+/', '-', $str);
    65. 

  65.         return $str;
    66. 

  66.     }
    67. 

  67. 

  68.     // Computes the *full* URL of the current page (protocol, server, path, query parameters, etc)
    69. 

  69.     function full_url()
    70. 

  70.     {
    71. 

  71.         $s = empty($_SERVER['HTTPS']) ? '' : ($_SERVER['HTTPS'] == 'on') ? 's' : '';
    72. 

  72.         $protocol = substr(strtolower($_SERVER['SERVER_PROTOCOL']), 0, strpos(strtolower($_SERVER['SERVER_PROTOCOL']), '/')) . $s;
    73. 

  73.         $port = ($_SERVER['SERVER_PORT'] == '80') ? '' : (":".$_SERVER['SERVER_PORT']);
    74. 

  74.         return $protocol . "://" . $_SERVER['HTTP_HOST'] . $port . $_SERVER['REQUEST_URI'];
    75. 

  75.     }
    76. 

  76. 

  77.     // Returns an English representation of a past date within the last month
    78. 

  78.     // Graciously stolen from http://ejohn.org/files/pretty.js
    79. 

  79.     function time2str($ts)
    80. 

  80.     {
    81. 

  81.         if(!ctype_digit($ts)) {
    82. 

  82.             $ts = strtotime($ts);
    83. 

  83. 		}
    84. 

  84. 

  85.         $diff = time() - $ts;
    86. 

  86.         if($diff == 0) {
    87. 

  87.             return 'now';
    88. 

  88.         } else if($diff > 0) {
    89. 

  89.             $day_diff = floor($diff / 86400);
    90. 

  90.             if($day_diff == 0)
    91. 

  91.             {
    92. 

  92.                 if($diff < 60) return 'just now';
    93. 

  93.                 if($diff < 120) return '1 minute ago';
    94. 

  94.                 if($diff < 3600) return floor($diff / 60) . ' minutes ago';
    95. 

  95.                 if($diff < 7200) return '1 hour ago';
    96. 

  96.                 if($diff < 86400) return floor($diff / 3600) . ' hours ago';
    97. 

  97.             }
    98. 

  98.             if($day_diff == 1) return 'Yesterday';
    99. 

  99.             if($day_diff < 7) return $day_diff . ' days ago';
    100. 

  100.             if($day_diff < 31) return ceil($day_diff / 7) . ' weeks ago';
    101. 

  101.             if($day_diff < 60) return 'last month';
    102. 

  102.             $ret = date('F Y', $ts);
    103. 

  103.             return ($ret == 'December 1969') ? '' : $ret;
    104. 

  104.         } else {
    105. 

  105.             $diff = abs($diff);
    106. 

  106.             $day_diff = floor($diff / 86400);
    107. 

  107.             if($day_diff == 0)
    108. 

  108.             {
    109. 

  109.                 if($diff < 120) return 'in a minute';
    110. 

  110.                 if($diff < 3600) return 'in ' . floor($diff / 60) . ' minutes';
    111. 

  111.                 if($diff < 7200) return 'in an hour';
    112. 

  112.                 if($diff < 86400) return 'in ' . floor($diff / 3600) . ' hours';
    113. 

  113.             }
    114. 

  114.             if($day_diff == 1) return 'Tomorrow';
    115. 

  115.             if($day_diff < 4) return date('l', $ts);
    116. 

  116.             if($day_diff < 7 + (7 - date('w'))) return 'next week';
    117. 

  117.             if(ceil($day_diff / 7) < 4) return 'in ' . ceil($day_diff / 7) . ' weeks';
    118. 

  118.             if(date('n', $ts) == date('n') + 1) return 'next month';
    119. 

  119.             $ret = date('F Y', $ts);
    120. 

  120.             return ($ret == 'December 1969') ? '' : $ret;
    121. 

  121.         }
    122. 

  122.     }
    123. 

  123. 

  124.     // Returns an array representation of the given calendar month.
    125. 

  125.     // The array values are timestamps which allow you to easily format
    126. 

  126.     // and manipulate the dates as needed.
    127. 

  127.     function calendar($month = null, $year = null)
    128. 

  128.     {
    129. 

  129.         if(is_null($month)) $month = date('n');
    130. 

  130.         if(is_null($year)) $year = date('Y');
    131. 

  131. 

  132.         $first = mktime(0, 0, 0, $month, 1, $year);
    133. 

  133.         $last = mktime(23, 59, 59, $month, date('t', $first), $year);
    134. 

  134. 

  135.         $start = $first - (86400 * date('w', $first));
    136. 

  136.         $stop = $last + (86400 * (7 - date('w', $first)));
    137. 

  137. 

  138.         $out = array();
    139. 

  139.         while($start < $stop)
    140. 

  140.         {
    141. 

  141.             $week = array();
    142. 

  142.             if($start > $last) break;
    143. 

  143.             for($i = 0; $i < 7; $i++)
    144. 

  144.             {
    145. 

  145.                 $week[$i] = $start;
    146. 

  146.                 $start += 86400;
    147. 

  147.             }
    148. 

  148.             $out[] = $week;
    149. 

  149.         }
    150. 

  150. 

  151.         return $out;
    152. 

  152.     }
    153. 

  153. 

  154.     // Processes mod_rewrite URLs into key => value pairs
    155. 

  155.     // See .htacess for more info.
    156. 

  156.     function pick_off($grab_first = false, $sep = '/')
    157. 

  157.     {
    158. 

  158.         $ret = array();
    159. 

  159.         $arr = explode($sep, trim($_SERVER['REQUEST_URI'], $sep));
    160. 

  160.         if($grab_first) $ret[0] = array_shift($arr);
    161. 

  161.         while(count($arr) > 0) {
    162. 

  162.             $ret[array_shift($arr)] = array_shift($arr);
    163. 

  163. 		}
    164. 

  164.         return (count($ret) > 0) ? $ret : false;
    165. 

  165.     }
    166. 

  166. 

  167.     // Creates a list of <option>s from the given database table.
    168. 

  168.     // table name, column to use as value, column(s) to use as text, default value(s) to select (can accept an array of values), extra sql to limit results
    169. 

  169.     function get_options($table, $val, $text, $default = null, $sql = '')
    170. 

  170.     {
    171. 

  171.         $db = Database::getDatabase(true);
    172. 

  172.         $out = '';
    173. 

  173. 

  174.         $table = $db->escape($table);
    175. 

  175.         $rows = $db->getRows("SELECT * FROM `$table` $sql");
    176. 

  176.         foreach($rows as $row)
    177. 

  177.         {
    178. 

  178.             $the_text = '';
    179. 

  179.             if(!is_array($text)) $text = array($text); // Allows you to concat multiple fields for display
    180. 

  180.             foreach($text as $t)
    181. 

  181.                 $the_text .= $row[$t] . ' ';
    182. 

  182.             $the_text = htmlspecialchars(trim($the_text));
    183. 

  183. 

  184.             if(!is_null($default) && $row[$val] == $default)
    185. 

  185.                 $out .= '<option value="' . htmlspecialchars($row[$val], ENT_QUOTES) . '" selected="selected">' . $the_text . '</option>';
    186. 

  186.             elseif(is_array($default) && in_array($row[$val],$default))
    187. 

  187.                 $out .= '<option value="' . htmlspecialchars($row[$val], ENT_QUOTES) . '" selected="selected">' . $the_text . '</option>';
    188. 

  188.             else
    189. 

  189.                 $out .= '<option value="' . htmlspecialchars($row[$val], ENT_QUOTES) . '">' . $the_text . '</option>';
    190. 

  190.         }
    191. 

  191.         return $out;
    192. 

  192.     }
    193. 

  193. 

  194.     // More robust strict date checking for string representations
    195. 

  195.     function chkdate($str)
    196. 

  196.     {
    197. 

  197.         $info = date_parse($str);
    198. 

  198.         if($info !== false && $info['error_count'] == 0)
    199. 

  199.         {
    200. 

  200.             if(checkdate($info['month'], $info['day'], $info['year'])) {
    201. 

  201.                 return true;
    202. 

  202. 			}
    203. 

  203.         }
    204. 

  204. 

  205.         return false;
    206. 

  206.     }
    207. 

  207. 

  208.     // Converts a date/timestamp into the specified format
    209. 

  209.     function dater($date = null, $format = null)
    210. 

  210.     {
    211. 

  211.         if(is_null($format)) {
    212. 

  212.             $format = 'Y-m-d H:i:s';
    213. 

  213. 		}
    214. 

  214. 

  215.         if(is_null($date)) {
    216. 

  216.             $date = time();
    217. 

  217. 		}
    218. 

  218. 

  219.         // if $date contains only numbers, treat it as a timestamp
    220. 

  220.         if(ctype_digit($date) === true)
    221. 

  221.             return date($format, $date);
    222. 

  222.         else
    223. 

  223.             return date($format, strtotime($date));
    224. 

  224.     }
    225. 

  225. 

  226.     // Formats a phone number as (xxx) xxx-xxxx or xxx-xxxx depending on the length.
    227. 

  227.     function format_phone($phone)
    228. 

  228.     {
    229. 

  229.         $phone = preg_replace("/[^0-9]/", '', $phone);
    230. 

  230. 

  231.         if(strlen($phone) == 7)
    232. 

  232.             return preg_replace("/([0-9]{3})([0-9]{4})/", "$1-$2", $phone);
    233. 

  233.         elseif(strlen($phone) == 10)
    234. 

  234.             return preg_replace("/([0-9]{3})([0-9]{3})([0-9]{4})/", "($1) $2-$3", $phone);
    235. 

  235.         else
    236. 

  236.             return $phone;
    237. 

  237.     }
    238. 

  238. 

  239.     // Outputs hour, minute, am/pm dropdown boxes
    240. 

  240.     function hourmin($hid = 'hour', $mid = 'minute', $pid = 'ampm', $hval = null, $mval = null, $pval = null)
    241. 

  241.     {
    242. 

  242.         // Dumb hack to let you just pass in a timestamp instead
    243. 

  243.         if(func_num_args() == 1)
    244. 

  244.         {
    245. 

  245.             list($hval, $mval, $pval) = explode(' ', date('g i a', strtotime($hid)));
    246. 

  246.             $hid = 'hour';
    247. 

  247.             $mid = 'minute';
    248. 

  248.             $aid = 'ampm';
    249. 

  249.         }
    250. 

  250.         else
    251. 

  251.         {
    252. 

  252.             if(is_null($hval)) $hval = date('h');
    253. 

  253.             if(is_null($mval)) $mval = date('i');
    254. 

  254.             if(is_null($pval)) $pval = date('a');
    255. 

  255.         }
    256. 

  256. 

  257.         $hours = array(12, 1, 2, 3, 4, 5, 6, 7, 9, 10, 11);
    258. 

  258.         $out = "<select name='$hid' id='$hid'>";
    259. 

  259.         foreach($hours as $hour)
    260. 

  260.             if(intval($hval) == intval($hour)) $out .= "<option value='$hour' selected>$hour</option>";
    261. 

  261.             else $out .= "<option value='$hour'>$hour</option>";
    262. 

  262.         $out .= "</select>";
    263. 

  263. 

  264.         $minutes = array('00', 15, 30, 45);
    265. 

  265.         $out .= "<select name='$mid' id='$mid'>";
    266. 

  266.         foreach($minutes as $minute)
    267. 

  267.             if(intval($mval) == intval($minute)) $out .= "<option value='$minute' selected>$minute</option>";
    268. 

  268.             else $out .= "<option value='$minute'>$minute</option>";
    269. 

  269.         $out .= "</select>";
    270. 

  270. 

  271.         $out .= "<select name='$pid' id='$pid'>";
    272. 

  272.         $out .= "<option value='am'>am</option>";
    273. 

  273.         if($pval == 'pm') $out .= "<option value='pm' selected>pm</option>";
    274. 

  274.         else $out .= "<option value='pm'>pm</option>";
    275. 

  275.         $out .= "</select>";
    276. 

  276. 

  277.         return $out;
    278. 

  278.     }
    279. 

  279. 

  280.     // Returns the HTML for a month, day, and year dropdown boxes.
    281. 

  281.     // You can set the default date by passing in a timestamp OR a parseable date string.
    282. 

  282.     // $prefix_ will be appened to the name/id's of each dropdown, allowing for multiple calls in the same form.
    283. 

  283.     // $output_format lets you specify which dropdowns appear and in what order.
    284. 

  284.     function mdy($date = null, $prefix = null, $output_format = 'm d y')
    285. 

  285.     {
    286. 

  286.         if(is_null($date)) $date = time();
    287. 

  287.         if(!ctype_digit($date)) $date = strtotime($date);
    288. 

  288.         if(!is_null($prefix)) $prefix .= '_';
    289. 

  289.         list($yval, $mval, $dval) = explode(' ', date('Y n j', $date));
    290. 

  290. 

  291.         $month_dd = "<select name='{$prefix}month' id='{$prefix}month'>";
    292. 

  292.         for($i = 1; $i <= 12; $i++)
    293. 

  293.         {
    294. 

  294.             $selected = ($mval == $i) ? ' selected="selected"' : '';
    295. 

  295.             $month_dd .= "<option value='$i'$selected>" . date('F', mktime(0, 0, 0, $i, 1, 2000)) . "</option>";
    296. 

  296.         }
    297. 

  297.         $month_dd .= "</select>";
    298. 

  298. 

  299.         $day_dd = "<select name='{$prefix}day' id='{$prefix}day'>";
    300. 

  300.         for($i = 1; $i <= 31; $i++)
    301. 

  301.         {
    302. 

  302.             $selected = ($dval == $i) ? ' selected="selected"' : '';
    303. 

  303.             $day_dd .= "<option value='$i'$selected>$i</option>";
    304. 

  304.         }
    305. 

  305.         $day_dd .= "</select>";
    306. 

  306. 

  307.         $year_dd = "<select name='{$prefix}year' id='{$prefix}year'>";
    308. 

  308.         for($i = date('Y'); $i < date('Y') + 10; $i++)
    309. 

  309.         {
    310. 

  310.             $selected = ($yval == $i) ? ' selected="selected"' : '';
    311. 

  311.             $year_dd .= "<option value='$i'$selected>$i</option>";
    312. 

  312.         }
    313. 

  313.         $year_dd .= "</select>";
    314. 

  314. 

  315.         $trans = array('m' => $month_dd, 'd' => $day_dd, 'y' => $year_dd);
    316. 

  316.         return strtr($output_format, $trans);
    317. 

  317.     }
    318. 

  318. 

  319.     // Redirects user to $url
    320. 

  320.     function redirect($url = null)
    321. 

  321.     {
    322. 

  322.         if(is_null($url)) $url = $_SERVER['PHP_SELF'];
    323. 

  323.         header("Location: $url");
    324. 

  324.         exit();
    325. 

  325.     }
    326. 

  326. 

  327.     // Ensures $str ends with a single /
    328. 

  328.     function slash($str)
    329. 

  329.     {
    330. 

  330.         return rtrim($str, '/') . '/';
    331. 

  331.     }
    332. 

  332. 

  333.     // Ensures $str DOES NOT end with a /
    334. 

  334.     function unslash($str)
    335. 

  335.     {
    336. 

  336.         return rtrim($str, '/');
    337. 

  337.     }
    338. 

  338. 

  339.     // Returns an array of the values of the specified column from a multi-dimensional array
    340. 

  340.     function gimme($arr, $key = null, $mod = 1)
    341. 

  341.     {
    342. 

  342.         if(is_null($key))
    343. 

  343.             $key = current(array_keys($arr));
    344. 

  344. 

  345. 		if(is_numeric($key)) {
    346. 

  346. 			$keys = array_keys($arr[0]);
    347. 

  347. 			$key = $keys[$key];
    348. 

  348. 		}
    349. 

  349. 

  350.         $out = array();
    351. 

  351. 		$i = 0;
    352. 

  352.         foreach($arr as $k => $a)
    353. 

  353. 		{
    354. 

  354. 			if($i % $mod == 0)
    355. 

  355. 	            $out[] = $a[$key];
    356. 

  356. 			$i++;
    357. 

  357. 		}
    358. 

  358. 

  359.         return $out;
    360. 

  360.     }
    361. 

  361. 

  362.     // Returns the first $num words of $str
    363. 

  363.     function max_words($str, $num, $suffix = '')
    364. 

  364.     {
    365. 

  365.         $words = explode(' ', $str);
    366. 

  366.         if(count($words) < $num)
    367. 

  367.             return $str;
    368. 

  368.         else
    369. 

  369.             return implode(' ', array_slice($words, 0, $num)) . $suffix;
    370. 

  370.     }
    371. 

  371. 

  372.     // Serves an external document for download as an HTTP attachment.
    373. 

  373.     function download_document($filename, $mimetype = 'application/octet-stream')
    374. 

  374.     {
    375. 

  375.         if(!file_exists($filename) || !is_readable($filename)) return false;
    376. 

  376.         $base = basename($filename);
    377. 

  377.         header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
    378. 

  378.         header("Content-Disposition: attachment; filename=$base");
    379. 

  379.         header("Content-Length: " . filesize($filename));
    380. 

  380.         header("Content-Type: $mimetype");
    381. 

  381.         readfile($filename);
    382. 

  382.         exit();
    383. 

  383.     }
    384. 

  384. 

  385.     // Retrieves the filesize of a remote file.
    386. 

  386.     function remote_filesize($url, $user = null, $pw = null)
    387. 

  387.     {
    388. 

  388.         $ch = curl_init($url);
    389. 

  389.         curl_setopt($ch, CURLOPT_HEADER, 1);
    390. 

  390.         curl_setopt($ch, CURLOPT_NOBODY, 1);
    391. 

  391.         curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    392. 

  392. 

  393.         if(!is_null($user) && !is_null($pw))
    394. 

  394.         {
    395. 

  395.             $headers = array('Authorization: Basic ' .  base64_encode("$user:$pw"));
    396. 

  396.             curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
    397. 

  397.         }
    398. 

  398. 

  399.         $head = curl_exec($ch);
    400. 

  400.         curl_close($ch);
    401. 

  401. 

  402.         preg_match('/Content-Length:\s([0-9].+?)\s/', $head, $matches);
    403. 

  403. 

  404.         return isset($matches[1]) ? $matches[1] : false;
    405. 

  405.     }
    406. 

  406. 

  407.     // Outputs a filesize in human readable format.
    408. 

  408.     function bytes2str($val, $round = 0)
    409. 

  409.     {
    410. 

  410.         $unit = array('','K','M','G','T','P','E','Z','Y');
    411. 

  411.         while($val >= 1000)
    412. 

  412.         {
    413. 

  413.             $val /= 1024;
    414. 

  414.             array_shift($unit);
    415. 

  415.         }
    416. 

  416.         return round($val, $round) . array_shift($unit) . 'B';
    417. 

  417.     }
    418. 

  418. 

  419.     // Tests for a valid email address and optionally tests for valid MX records, too.
    420. 

  420.     function valid_email($email, $test_mx = false)
    421. 

  421.     {
    422. 

  422. 		list($user, $domain) = explode('@', $email);
    423. 

  423. 		if(strlen($user) > 0 && strlen($domain) > 0) {
    424. 

  424. 			$parts = explode('.', $domain);
    425. 

  425. 			if($parts >= 2) {
    426. 

  426. 	            if($test_mx) {
    427. 

  427. 	                return getmxrr($domain, $mxrecords);
    428. 

  428. 	            } else {
    429. 

  429. 	                return true;
    430. 

  430. 				}
    431. 

  431. 			}
    432. 

  432. 		}
    433. 

  433. 

  434.         return false;
    435. 

  435.     }
    436. 

  436. 

  437.     // Grabs the contents of a remote URL. Can perform basic authentication if un/pw are provided.
    438. 

  438.     function geturl($url, $username = null, $password = null)
    439. 

  439.     {
    440. 

  440.         if(function_exists('curl_init'))
    441. 

  441.         {
    442. 

  442.             $ch = curl_init();
    443. 

  443.             if(!is_null($username) && !is_null($password)) {
    444. 

  444.                 curl_setopt($ch, CURLOPT_HTTPHEADER, array('Authorization: Basic ' .  base64_encode("$username:$password")));
    445. 

  445. 			}
    446. 

  446.             curl_setopt($ch, CURLOPT_URL, $url);
    447. 

  447.             curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    448. 

  448.             $html = curl_exec($ch);
    449. 

  449.             curl_close($ch);
    450. 

  450.             return $html;
    451. 

  451.         }
    452. 

  452.         elseif(ini_get('allow_url_fopen') == true)
    453. 

  453.         {
    454. 

  454.             if(!is_null($username) && !is_null($password))
    455. 

  455.                 $url = str_replace("://", "://$username:$password@", $url);
    456. 

  456.             $html = file_get_contents($url);
    457. 

  457.             return $html;
    458. 

  458.         }
    459. 

  459.         else
    460. 

  460.         {
    461. 

  461.             // Cannot open url. Either install curl-php or set allow_url_fopen = true in php.ini
    462. 

  462.             return false;
    463. 

  463.         }
    464. 

  464.     }
    465. 

  465. 

  466.     // Returns the user's browser info.
    467. 

  467.     // browscap.ini must be available for this to work.
    468. 

  468.     // See the PHP manual for more details.
    469. 

  469.     function browser_info()
    470. 

  470.     {
    471. 

  471.         $info    = get_browser(null, true);
    472. 

  472.         $browser = $info['browser'] . ' ' . $info['version'];
    473. 

  473.         $os      = $info['platform'];
    474. 

  474.         $ip      = $_SERVER['REMOTE_ADDR'];
    475. 

  475.         return array('ip' => $ip, 'browser' => $browser, 'os' => $os);
    476. 

  476.     }
    477. 

  477. 

  478.     // Quick wrapper for preg_match
    479. 

  479.     function match($regex, $str, $i = 0)
    480. 

  480.     {
    481. 

  481.         if(preg_match($regex, $str, $match) == 1)
    482. 

  482.             return $match[$i];
    483. 

  483.         else
    484. 

  484.             return false;
    485. 

  485.     }
    486. 

  486. 

  487.     // Sends an HTML formatted email
    488. 

  488.     function send_html_mail($to, $subject, $msg, $from, $plaintext = '')
    489. 

  489.     {
    490. 

  490.         if(!is_array($to)) $to = array($to);
    491. 

  491. 

  492.         foreach($to as $address)
    493. 

  493.         {
    494. 

  494.             $boundary = uniqid(rand(), true);
    495. 

  495. 

  496.             $headers  = "From: $from\n";
    497. 

  497.             $headers .= "MIME-Version: 1.0\n";
    498. 

  498.             $headers .= "Content-Type: multipart/alternative; boundary = $boundary\n";
    499. 

  499.             $headers .= "This is a MIME encoded message.\n\n";
    500. 

  500.             $headers .= "--$boundary\n" .
    501. 

  501.                         "Content-Type: text/plain; charset=ISO-8859-1\n" .
    502. 

  502.                         "Content-Transfer-Encoding: base64\n\n";
    503. 

  503.             $headers .= chunk_split(base64_encode($plaintext));
    504. 

  504.             $headers .= "--$boundary\n" .
    505. 

  505.                         "Content-Type: text/html; charset=ISO-8859-1\n" .
    506. 

  506.                         "Content-Transfer-Encoding: base64\n\n";
    507. 

  507.             $headers .= chunk_split(base64_encode($msg));
    508. 

  508.             $headers .= "--$boundary--\n" .
    509. 

  509. 

  510.             mail($address, $subject, '', $headers);
    511. 

  511.         }
    512. 

  512.     }
    513. 

  513. 

  514.     // Quick and dirty wrapper for curl scraping.
    515. 

  515.     function curl($url, $referer = null, $post = null)
    516. 

  516.     {
    517. 

  517.         static $tmpfile;
    518. 

  518. 

  519.         if(!isset($tmpfile) || ($tmpfile == '')) $tmpfile = tempnam('/tmp', 'FOO');
    520. 

  520. 

  521.         $ch = curl_init($url);
    522. 

  522.         curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    523. 

  523.         curl_setopt($ch, CURLOPT_COOKIEFILE, $tmpfile);
    524. 

  524.         curl_setopt($ch, CURLOPT_COOKIEJAR, $tmpfile);
    525. 

  525.         curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
    526. 

  526.         curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_4) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.1 Safari/605.1.15");
    527. 

  527.         // curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
    528. 

  528.         // curl_setopt($ch, CURLOPT_VERBOSE, 1);
    529. 

  529. 

  530.         if(!is_null($referer)) {
    531. 

  531. 			curl_setopt($ch, CURLOPT_REFERER, $referer);
    532. 

  532. 		}
    533. 

  533. 

  534.         if(!is_null($post)) {
    535. 

  535.             curl_setopt($ch, CURLOPT_POST, true);
    536. 

  536.             curl_setopt($ch, CURLOPT_POSTFIELDS, $post);
    537. 

  537.         }
    538. 

  538. 

  539.         $html = curl_exec($ch);
    540. 

  540. 

  541.         // $last_url = curl_getinfo($ch, CURLINFO_EFFECTIVE_URL);
    542. 

  542.         return $html;
    543. 

  543.     }
    544. 

  544. 

  545.     // Accepts any number of arguments and returns the first non-empty one
    546. 

  546.     function pick()
    547. 

  547.     {
    548. 

  548.         foreach(func_get_args() as $arg) {
    549. 

  549.             if(!empty($arg)) {
    550. 

  550.                 return $arg;
    551. 

  551. 			}
    552. 

  552. 		}
    553. 

  553.         return '';
    554. 

  554.     }
    555. 

  555. 

  556.     // Secure a PHP script using basic HTTP authentication
    557. 

  557.     function http_auth($un, $pw, $realm = "Secured Area")
    558. 

  558.     {
    559. 

  559.         if(!(isset($_SERVER['PHP_AUTH_USER']) && isset($_SERVER['PHP_AUTH_PW']) && $_SERVER['PHP_AUTH_USER'] == $un && $_SERVER['PHP_AUTH_PW'] == $pw))
    560. 

  560.         {
    561. 

  561.             header('WWW-Authenticate: Basic realm="' . $realm . '"');
    562. 

  562.             header('Status: 401 Unauthorized');
    563. 

  563.             exit();
    564. 

  564.         }
    565. 

  565.     }
    566. 

  566. 

  567.     // This is easier than typing 'echo WEB_ROOT'
    568. 

  568.     function WEBROOT()
    569. 

  569.     {
    570. 

  570.         echo WEB_ROOT;
    571. 

  571.     }
    572. 

  572. 

  573.     // Class Autloader
    574. 

  574. 	function spf_autoload($class_name)
    575. 

  575. 	{
    576. 

  576. 		$fn = DOC_ROOT . '/includes/class.' . strtolower($class_name) . '.php';
    577. 

  577. 		if(file_exists($fn))
    578. 

  578. 		{
    579. 

  579. 			return include $fn;
    580. 

  580. 		}
    581. 

  581. 	}
    582. 

  582. 

  583.     // Returns a file's mimetype based on its extension
    584. 

  584.     function mime_type($filename, $default = 'application/octet-stream')
    585. 

  585.     {
    586. 

  586.         $mime_types = array('323'     => 'text/h323',
    587. 

  587.                             'acx'     => 'application/internet-property-stream',
    588. 

  588.                             'ai'      => 'application/postscript',
    589. 

  589.                             'aif'     => 'audio/x-aiff',
    590. 

  590.                             'aifc'    => 'audio/x-aiff',
    591. 

  591.                             'aiff'    => 'audio/x-aiff',
    592. 

  592.                             'asf'     => 'video/x-ms-asf',
    593. 

  593.                             'asr'     => 'video/x-ms-asf',
    594. 

  594.                             'asx'     => 'video/x-ms-asf',
    595. 

  595.                             'au'      => 'audio/basic',
    596. 

  596.                             'avi'     => 'video/x-msvideo',
    597. 

  597.                             'axs'     => 'application/olescript',
    598. 

  598.                             'bas'     => 'text/plain',
    599. 

  599.                             'bcpio'   => 'application/x-bcpio',
    600. 

  600.                             'bin'     => 'application/octet-stream',
    601. 

  601.                             'bmp'     => 'image/bmp',
    602. 

  602.                             'c'       => 'text/plain',
    603. 

  603.                             'cat'     => 'application/vnd.ms-pkiseccat',
    604. 

  604.                             'cdf'     => 'application/x-cdf',
    605. 

  605.                             'cer'     => 'application/x-x509-ca-cert',
    606. 

  606.                             'class'   => 'application/octet-stream',
    607. 

  607.                             'clp'     => 'application/x-msclip',
    608. 

  608.                             'cmx'     => 'image/x-cmx',
    609. 

  609.                             'cod'     => 'image/cis-cod',
    610. 

  610.                             'cpio'    => 'application/x-cpio',
    611. 

  611.                             'crd'     => 'application/x-mscardfile',
    612. 

  612.                             'crl'     => 'application/pkix-crl',
    613. 

  613.                             'crt'     => 'application/x-x509-ca-cert',
    614. 

  614.                             'csh'     => 'application/x-csh',
    615. 

  615.                             'css'     => 'text/css',
    616. 

  616.                             'dcr'     => 'application/x-director',
    617. 

  617.                             'der'     => 'application/x-x509-ca-cert',
    618. 

  618.                             'dir'     => 'application/x-director',
    619. 

  619.                             'dll'     => 'application/x-msdownload',
    620. 

  620.                             'dms'     => 'application/octet-stream',
    621. 

  621.                             'doc'     => 'application/msword',
    622. 

  622.                             'dot'     => 'application/msword',
    623. 

  623.                             'dvi'     => 'application/x-dvi',
    624. 

  624.                             'dxr'     => 'application/x-director',
    625. 

  625.                             'eps'     => 'application/postscript',
    626. 

  626.                             'etx'     => 'text/x-setext',
    627. 

  627.                             'evy'     => 'application/envoy',
    628. 

  628.                             'exe'     => 'application/octet-stream',
    629. 

  629.                             'fif'     => 'application/fractals',
    630. 

  630.                             'flac'    => 'audio/flac',
    631. 

  631.                             'flr'     => 'x-world/x-vrml',
    632. 

  632.                             'gif'     => 'image/gif',
    633. 

  633.                             'gtar'    => 'application/x-gtar',
    634. 

  634.                             'gz'      => 'application/x-gzip',
    635. 

  635.                             'h'       => 'text/plain',
    636. 

  636.                             'hdf'     => 'application/x-hdf',
    637. 

  637.                             'hlp'     => 'application/winhlp',
    638. 

  638.                             'hqx'     => 'application/mac-binhex40',
    639. 

  639.                             'hta'     => 'application/hta',
    640. 

  640.                             'htc'     => 'text/x-component',
    641. 

  641.                             'htm'     => 'text/html',
    642. 

  642.                             'html'    => 'text/html',
    643. 

  643.                             'htt'     => 'text/webviewhtml',
    644. 

  644.                             'ico'     => 'image/x-icon',
    645. 

  645.                             'ief'     => 'image/ief',
    646. 

  646.                             'iii'     => 'application/x-iphone',
    647. 

  647.                             'ins'     => 'application/x-internet-signup',
    648. 

  648.                             'isp'     => 'application/x-internet-signup',
    649. 

  649.                             'jfif'    => 'image/pipeg',
    650. 

  650.                             'jpe'     => 'image/jpeg',
    651. 

  651.                             'jpeg'    => 'image/jpeg',
    652. 

  652.                             'jpg'     => 'image/jpeg',
    653. 

  653.                             'js'      => 'application/x-javascript',
    654. 

  654.                             'latex'   => 'application/x-latex',
    655. 

  655.                             'lha'     => 'application/octet-stream',
    656. 

  656.                             'lsf'     => 'video/x-la-asf',
    657. 

  657.                             'lsx'     => 'video/x-la-asf',
    658. 

  658.                             'lzh'     => 'application/octet-stream',
    659. 

  659.                             'm13'     => 'application/x-msmediaview',
    660. 

  660.                             'm14'     => 'application/x-msmediaview',
    661. 

  661.                             'm3u'     => 'audio/x-mpegurl',
    662. 

  662.                             'man'     => 'application/x-troff-man',
    663. 

  663.                             'mdb'     => 'application/x-msaccess',
    664. 

  664.                             'me'      => 'application/x-troff-me',
    665. 

  665.                             'mht'     => 'message/rfc822',
    666. 

  666.                             'mhtml'   => 'message/rfc822',
    667. 

  667.                             'mid'     => 'audio/mid',
    668. 

  668.                             'mny'     => 'application/x-msmoney',
    669. 

  669.                             'mov'     => 'video/quicktime',
    670. 

  670.                             'movie'   => 'video/x-sgi-movie',
    671. 

  671.                             'mp2'     => 'video/mpeg',
    672. 

  672.                             'mp3'     => 'audio/mpeg',
    673. 

  673.                             'mpa'     => 'video/mpeg',
    674. 

  674.                             'mpe'     => 'video/mpeg',
    675. 

  675.                             'mpeg'    => 'video/mpeg',
    676. 

  676.                             'mpg'     => 'video/mpeg',
    677. 

  677.                             'mpp'     => 'application/vnd.ms-project',
    678. 

  678.                             'mpv2'    => 'video/mpeg',
    679. 

  679.                             'ms'      => 'application/x-troff-ms',
    680. 

  680.                             'mvb'     => 'application/x-msmediaview',
    681. 

  681.                             'nws'     => 'message/rfc822',
    682. 

  682.                             'oda'     => 'application/oda',
    683. 

  683.                             'oga'     => 'audio/ogg',
    684. 

  684.                             'ogg'     => 'audio/ogg',
    685. 

  685.                             'ogv'     => 'video/ogg',
    686. 

  686.                             'ogx'     => 'application/ogg',
    687. 

  687.                             'p10'     => 'application/pkcs10',
    688. 

  688.                             'p12'     => 'application/x-pkcs12',
    689. 

  689.                             'p7b'     => 'application/x-pkcs7-certificates',
    690. 

  690.                             'p7c'     => 'application/x-pkcs7-mime',
    691. 

  691.                             'p7m'     => 'application/x-pkcs7-mime',
    692. 

  692.                             'p7r'     => 'application/x-pkcs7-certreqresp',
    693. 

  693.                             'p7s'     => 'application/x-pkcs7-signature',
    694. 

  694.                             'pbm'     => 'image/x-portable-bitmap',
    695. 

  695.                             'pdf'     => 'application/pdf',
    696. 

  696.                             'pfx'     => 'application/x-pkcs12',
    697. 

  697.                             'pgm'     => 'image/x-portable-graymap',
    698. 

  698.                             'pko'     => 'application/ynd.ms-pkipko',
    699. 

  699.                             'pma'     => 'application/x-perfmon',
    700. 

  700.                             'pmc'     => 'application/x-perfmon',
    701. 

  701.                             'pml'     => 'application/x-perfmon',
    702. 

  702.                             'pmr'     => 'application/x-perfmon',
    703. 

  703.                             'pmw'     => 'application/x-perfmon',
    704. 

  704.                             'pnm'     => 'image/x-portable-anymap',
    705. 

  705.                             'pot'     => 'application/vnd.ms-powerpoint',
    706. 

  706.                             'ppm'     => 'image/x-portable-pixmap',
    707. 

  707.                             'pps'     => 'application/vnd.ms-powerpoint',
    708. 

  708.                             'ppt'     => 'application/vnd.ms-powerpoint',
    709. 

  709.                             'prf'     => 'application/pics-rules',
    710. 

  710.                             'ps'      => 'application/postscript',
    711. 

  711.                             'pub'     => 'application/x-mspublisher',
    712. 

  712.                             'qt'      => 'video/quicktime',
    713. 

  713.                             'ra'      => 'audio/x-pn-realaudio',
    714. 

  714.                             'ram'     => 'audio/x-pn-realaudio',
    715. 

  715.                             'ras'     => 'image/x-cmu-raster',
    716. 

  716.                             'rgb'     => 'image/x-rgb',
    717. 

  717.                             'rmi'     => 'audio/mid',
    718. 

  718.                             'roff'    => 'application/x-troff',
    719. 

  719.                             'rtf'     => 'application/rtf',
    720. 

  720.                             'rtx'     => 'text/richtext',
    721. 

  721.                             'scd'     => 'application/x-msschedule',
    722. 

  722.                             'sct'     => 'text/scriptlet',
    723. 

  723.                             'setpay'  => 'application/set-payment-initiation',
    724. 

  724.                             'setreg'  => 'application/set-registration-initiation',
    725. 

  725.                             'sh'      => 'application/x-sh',
    726. 

  726.                             'shar'    => 'application/x-shar',
    727. 

  727.                             'sit'     => 'application/x-stuffit',
    728. 

  728.                             'snd'     => 'audio/basic',
    729. 

  729.                             'spc'     => 'application/x-pkcs7-certificates',
    730. 

  730.                             'spl'     => 'application/futuresplash',
    731. 

  731.                             'src'     => 'application/x-wais-source',
    732. 

  732.                             'sst'     => 'application/vnd.ms-pkicertstore',
    733. 

  733.                             'stl'     => 'application/vnd.ms-pkistl',
    734. 

  734.                             'stm'     => 'text/html',
    735. 

  735.                             'svg'     => "image/svg+xml",
    736. 

  736.                             'sv4cpio' => 'application/x-sv4cpio',
    737. 

  737.                             'sv4crc'  => 'application/x-sv4crc',
    738. 

  738.                             't'       => 'application/x-troff',
    739. 

  739.                             'tar'     => 'application/x-tar',
    740. 

  740.                             'tcl'     => 'application/x-tcl',
    741. 

  741.                             'tex'     => 'application/x-tex',
    742. 

  742.                             'texi'    => 'application/x-texinfo',
    743. 

  743.                             'texinfo' => 'application/x-texinfo',
    744. 

  744.                             'tgz'     => 'application/x-compressed',
    745. 

  745.                             'tif'     => 'image/tiff',
    746. 

  746.                             'tiff'    => 'image/tiff',
    747. 

  747.                             'tr'      => 'application/x-troff',
    748. 

  748.                             'trm'     => 'application/x-msterminal',
    749. 

  749.                             'tsv'     => 'text/tab-separated-values',
    750. 

  750.                             'txt'     => 'text/plain',
    751. 

  751.                             'uls'     => 'text/iuls',
    752. 

  752.                             'ustar'   => 'application/x-ustar',
    753. 

  753.                             'vcf'     => 'text/x-vcard',
    754. 

  754.                             'vrml'    => 'x-world/x-vrml',
    755. 

  755.                             'wav'     => 'audio/x-wav',
    756. 

  756.                             'wcm'     => 'application/vnd.ms-works',
    757. 

  757.                             'wdb'     => 'application/vnd.ms-works',
    758. 

  758.                             'wks'     => 'application/vnd.ms-works',
    759. 

  759.                             'wmf'     => 'application/x-msmetafile',
    760. 

  760.                             'wps'     => 'application/vnd.ms-works',
    761. 

  761.                             'wri'     => 'application/x-mswrite',
    762. 

  762.                             'wrl'     => 'x-world/x-vrml',
    763. 

  763.                             'wrz'     => 'x-world/x-vrml',
    764. 

  764.                             'xaf'     => 'x-world/x-vrml',
    765. 

  765.                             'xbm'     => 'image/x-xbitmap',
    766. 

  766.                             'xla'     => 'application/vnd.ms-excel',
    767. 

  767.                             'xlc'     => 'application/vnd.ms-excel',
    768. 

  768.                             'xlm'     => 'application/vnd.ms-excel',
    769. 

  769.                             'xls'     => 'application/vnd.ms-excel',
    770. 

  770.                             'xlt'     => 'application/vnd.ms-excel',
    771. 

  771.                             'xlw'     => 'application/vnd.ms-excel',
    772. 

  772.                             'xof'     => 'x-world/x-vrml',
    773. 

  773.                             'xpm'     => 'image/x-xpixmap',
    774. 

  774.                             'xwd'     => 'image/x-xwindowdump',
    775. 

  775.                             'z'       => 'application/x-compress',
    776. 

  776.                             'zip'     => 'application/zip');
    777. 

  777.         $ext = pathinfo($filename, PATHINFO_EXTENSION);
    778. 

  778.         return isset($mime_types[$ext]) ? $mime_types[$ext] : $default;
    779. 

  779.     }
    780. 

  780.