include/template_processor.php

   1 <?php
   2
   3
   4         class Template {
   5                 var $s;
   6                 var $r;
   7                 var $search;
   8                 var $replace;
   9
  10                 private function _build_replace($r, $prefix){
  11
  12                         if(is_array($r) && count($r)) {
  13                                 foreach ($r as $k => $v ) {
  14                                         if (is_array($v))
  15                                                 $this->_build_replace($v, "$prefix$k.");
  16
  17                                         $this->search[] =  $prefix . $k;
  18                                         $this->replace[] = $v;
  19                                 }
  20                         }
  21                 }
  22
  23                 private function _replcb_if($m){
  24                         //echo "<pre>"; var_dump($m);
  25                         $keys = explode(".",$m[1]);
  26                         $val = $this->r;
  27                         foreach($keys as $k) {
  28                                 $val = $val[$k];
  29                         }
  30
  31                         //echo $val;
  32                         return ($val?$m[2]:"");
  33                 }
  34
  35                 public function replace($s, $r) {
  36                         $this->s = $s;
  37                         $this->r = $r;
  38                         $this->search = array();
  39                         $this->replace = array();
  40
  41                         $this->_build_replace($r, "");
  42
  43
  44                         $s = preg_replace_callback("|{{ *if *([^ }]*) *}}([^{]*){{ *endif *}}|", array($this, "_replcb_if"), $s);
  45
  46                         return str_replace($this->search,$this->replace,$s);
  47                 }
  48
  49         }
  50         $t = new Template;