base/functions.php

   1 <?php
   2 // Hoplite
   3 // Copyright (c) 2011 Blue Static
   4 //
   5 // This program is free software: you can redistribute it and/or modify it
   6 // under the terms of the GNU General Public License as published by the Free
   7 // Software Foundation, either version 3 of the License, or any later version.
   8 //
   9 // This program is distributed in the hope that it will be useful, but WITHOUT
  10 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11 // FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12 // more details.
  13 //
  14 // You should have received a copy of the GNU General Public License along with
  15 // this program.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 namespace hoplite\base;
  18
  19 /*!
  20  Iterates over an array and unsets any empty elements in the array. This
  21  operates on the parameter itself.
  22 */
  23 function ArrayStripEmpty(Array & $array)
  24 {
  25   foreach ($array as $key => $value)
  26     if (is_array($array[$key]))
  27       ArrayStripEmpty($array[$key]);
  28     else if (empty($value))
  29       unset($array[$key]);
  30 }
  31
  32 /*!
  33   Turns an under_scored string into a CamelCased one. If |$first_char| is
  34   TRUE, then the first character will also be capatalized.
  35 */
  36 function UnderscoreToCamelCase($string, $first_char = TRUE)
  37 {
  38   if ($first_char)
  39     $string[0] = strtoupper($string[0]);
  40   return preg_replace_callback('/_([a-z])/',
  41       function($c) { return strtoupper($c[1]); },
  42       $string);
  43 }
  44
  45 /*!
  46   Turns a CamelCase string to an under_scored one.
  47 */
  48 function CamelCaseToUnderscore($string)
  49 {
  50   $string = preg_replace('/([A-Z]+)([A-Z][a-z])/','\1_\2',$string);
  51   $string = preg_replace('/([a-z])([A-Z])/','\1_\2', $string);
  52   return strtolower($string);
  53 }
  54
  55 /*!
  56   Creates a random string of length |$length|, or a random length between 20
  57   and 100 if NULL.
  58 */
  59 function Random($length = NULL)
  60 {
  61   if ($length === NULL)
  62     $length = rand(20, 100);
  63
  64   $string = '';
  65   for ($i = 0; $i < $length; $i++) {
  66     $type = rand(0, 300);
  67     if ($type < 100)
  68       $string .= rand(0, 9);
  69     else if ($type < 200)
  70       $string .= chr(rand(65, 90));
  71     else
  72       $string .= chr(rand(97, 122));
  73   }
  74
  75   return $string;
  76 }