xml_set_element_handler

Definition and usage

The xml_set_element_handler() function is used to specify the functions called at the beginning and end of an element in an XML document.

Note: The start and end parameters can also be an array containing object references and method names.

Example

Specifies the function to be called at the beginning and end of an element in an XML document ( note.xml ):

 <?php
$parser = xml_parser_create ( ) ;

function start ( $parser , $element_name , $element_attrs ) {
  switch ( $element_name ) {
    case "NOTE" :
      echo "NOTE<br>" ;
      break ;
    case "TO" :
      echo "To: " ;
      break ;
    case "FROM" :
      echo "From: " ;
      break ;
    case "HEADING" :
      echo "Heading: " ;
      break ;
    case "BODY" :
      echo "Message: " ;
  }
}

function stop ( $parser , $element_name ) {
  echo "<br>" ;
}

function char ( $parser , $data ) {
  echo $data ;
}

// Specify the function to be called at the beginning and end of an element in an XML document
xml_set_element_handler ( $parser , "start" , "stop" ) ;
xml_set_character_data_handler ( $parser , "char" ) ;
$fp = fopen ( "note.xml" , "r" ) ;

while ( $data = fread ( $fp , 4096 ) ) {
  xml_parse ( $parser , $data , feof ( $fp ) ) or
  die ( sprintf ( "XML error: %s on line %d" ,
  xml_error_string ( xml_get_error_code ( $parser ) ) ,
  xml_get_current_line_number ( $parser ) ) ) ;
}

xml_parser_free ( $parser ) ;
fclose ( $fp ) ;
?>

Run the instance

grammar

 xml_set_element_handler ( parser , start , end )