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   1  <?php
   2  
   3  class iCal { 
   4  
   5      var $folders;
   6      
   7      function iCal() {
   8          $this->folders = 'cache/import/';
   9      }
  10      
  11      function iCalReader($filename,$root_directory='') {
  12          $iCaltoArray = $this->iCalDecoder($filename,$root_directory);
  13          return $iCaltoArray;
  14      }
  15      
  16      function iCalDecoder($file,$root_directory) {
  17          $ical = file_get_contents($root_directory.$this->folders.$file);
  18          preg_match_all('/BEGIN:VEVENT.*?END:VEVENT/si', $ical, $eventresult, PREG_PATTERN_ORDER);
  19          preg_match_all('/BEGIN:VTODO.*?END:VTODO/si', $ical, $todoresult, PREG_PATTERN_ORDER);
  20          for ($i = 0; $i < count($eventresult[0]); $i++) {
  21              $tmpbyline = explode("\r\n", $eventresult[0][$i]);
  22              $begin = false;
  23              $key=NULL;
  24              foreach ($tmpbyline as $item) {
  25                  $tmpholderarray = explode(":",$item,2);
  26                  
  27                  if (count($tmpholderarray) >1) { 
  28                      if($tmpholderarray[0]=='BEGIN'){
  29                           if($begin==false){
  30                               $begin = true;
  31                               $majorarray['TYPE']=$tmpholderarray[1];
  32                           } else {
  33                               $majorarray[$tmpholderarray[1]]=array();
  34                               $key = $tmpholderarray[1];
  35                           }
  36                      } else if($tmpholderarray[0]=='END'){
  37                          if(!empty($key)){
  38                              $key = NULL;
  39                          }
  40                      } else {
  41                          if(!empty($key)){
  42                              $majorarray[$key][$tmpholderarray[0]] = $tmpholderarray[1];
  43                          } else {
  44                              $majorarray[$tmpholderarray[0]] = $tmpholderarray[1];
  45                          }
  46                      }
  47                  }
  48                  
  49              }
  50              $icalarray[] = $majorarray;
  51              unset($majorarray);
  52          }
  53          
  54          for ($i = 0; $i < count($todoresult[0]); $i++) {
  55              $tmpbyline = explode("\r\n", $todoresult[0][$i]);
  56              $begin = false;
  57              $key=NULL;
  58              foreach ($tmpbyline as $item) {
  59                  $tmpholderarray = explode(":",$item);
  60                  
  61                  if (count($tmpholderarray) >1) { 
  62                      if($tmpholderarray[0]=='BEGIN'){
  63                           if($begin==false){
  64                               $begin = true;
  65                               $majorarray['TYPE']=$tmpholderarray[1];
  66                           } else {
  67                               $majorarray[$tmpholderarray[1]]=array();
  68                               $key = $tmpholderarray[1];
  69                           }
  70                      } else if($tmpholderarray[0]=='END'){
  71                          if(!empty($key)){
  72                              $key = NULL;
  73                          }
  74                      } else {
  75                          if(!empty($key)){
  76                              $majorarray[$key][$tmpholderarray[0]] = $tmpholderarray[1];
  77                          } else {
  78                              $majorarray[$tmpholderarray[0]] = $tmpholderarray[1];
  79                          }
  80                      }
  81                  }
  82                  
  83              }
  84              $icalarray[] = $majorarray;
  85              unset($majorarray);
  86          }
  87          return $icalarray;
  88      }
  89  }
  90  
  91  ?>