构建查询字符串

  <?php
  /**
   * 构建查询字符串
   */
   
  $vars = array('name' => 'this is a name',
                'color' => 'red',
                'favorite_punctuation' => '#');
  $query_str = http_build_query($vars);
  
  $url = '/test/test.php?' . $query_str;
  echo $url."\n";
  
  $url = '/test/test.php?' . htmlentities($query_str);
  echo $url."\n";

输出结果:
/test/test.php?name=this+is+a+name&color=red&favorite_punctuation=%23
/test/test.php?name=this+is+a+name&color=red&favorite_punctuation=%23


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