xml_parse

Definition and usage

xml_parse() function is used to parse XML documents.

Tip: To create an XML parser, use xml_parser_create() function.

Example

Example 1

Create an XML parser and parse the XML document ( note.xml ):

 <?php
// Create XML parser
$parser = xml_parser_create ( ) ;

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

xml_set_character_data_handler ( $parser , "char" ) ;
$fp = fopen ( "note.xml" , "r" ) ;

while ( $data = fread ( $fp , 4096 ) ) {
  // parse XML data
  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

Example 2

Use the same XML file, but display the XML data in another way:

 <?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 ;
}

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_parse ( parser , data , end )