Example of the ZF Framework filter filter usage

  This article mainly introduces the ZF Framework filter filter Use example, the code has comments, the need for friends can refer to the following

  Code as follows: <?php/* Filter Simple use method and operation () * *   require_once ("zend/loader.php"); The string that introduces Filter to lowercase class and capitalization class Zend_loader::loadclass ("Zend_filter_stringtolower"); Zend_loader::loadclass ("Zend_filter_stringtoupper"); Instantiate the string to lowercase class and capitalization class $Filter = new Zend_filter_stringtolower (); $Filter 2 = new Zend_filter_stringtoupper (); Set the string to be converted $Temp = ' Zhouwujie     Zhouwujie     '; Conversion method Filter (); $Result = $Filter-> Filter ($Temp); $Result 2 = $Filter 2-> filter ($TEMP); Echo $Result; echo $Result 2?>       code as follows: <?php/* Filter use method and operation (filter chain)/require_once ("zend/loader.php"); Filter filters are used to load filters and filter the method class Zend_loader::loadclass ("Zend_filter"); Zend_loader::loadclass ("Zend_filter_htmlentities"); Zend_loader::loadclass ("Zend_filter_striptags"); After instantiating the filter, add the filter addfilter (new Filter Method class name ()) $Filter = new Zend_filter (); $Filter//-> addfilter (New Zend_filter_htmlentities ());  -> addfilter (New Zend_filter_striptags ()); $String = "<a href= ' # ' > Link </a>"; $Result = $Filter-> Filter ($String); echo $Result?>     code as follows: <?php/* Custom Filter/require_once ("zend/loader.php"); Zend_loader::loadclass ("Zend_filter_interface"); Class Myfilter implements Zend_filter_interface { public function Filter ($value)  {  $List = array (' Yellow ', ' Bet ', ' poison ');   foreach ($List as $k => $v)     {    $value = Str_replace ($v, ' * ', $value);  }   R Eturn $value; &NBSP} $Filter = new Myfilter (); $String = ' This message is yellow content '; $String 2 = ' He went gambling today '; $String 3 = ' He went on drugs today '; echo "