Pobranie aktualnego kursu dolara

[petrosz moss]

witam,

w jaki sposob pobrac aktualny kurs dolara ze strony NBP

https://www.nbp.pl/Kursy/xml/a103z050531.xml

chodzi mi tylko o pobranie tej jednej wartosci.

dzieki

piotrek

[gofer]

<?

include( "PRAX.php" );

$rax = new RAX();

$rax->openfile("nazwa.xml");

$rax->record_delim = 'pozycja';  

$rax->parse();

$rec = $rax->readRecord();



 

while ( $rec )

{

$row = $rec->getRow();

echo $row["nazwa_waluty"];  //tu można wyciągnąć coś innego 

$rec = $rax->readRecord();

}

prax.php

<?php



class RAX {



function RAX () {



 $this->record_delim = '';

 $this->fields = array();

 $this->records = array();

 $this->parser;

 $this->in_rec = 0;

 $this->in_field = 0;

 $this->field_data = '';

 $this->tag_stack = array();

 $this->xml = '';

 $this->xml_file;

 $this->rax_opened = 0;

 $this->debug = 0;

 $this->version = '0.1';



}





function open ($xml) {



 $this->debug("open("$xml")");



 if ($this->rax_opened) return 0;



 $this->xml = $xml;

 $this->rax_opened = 1;

}





function openfile ($filename) {



 $this->debug("openfile("$filename")");



 if ($this->rax_opened) return 0;



 $fp = fopen($filename, "r");



 if ($fp) {

 	$this->xml_file = $fp;

 	$this->rax_opened = 1;

 	return 1;

 }



 return 0;

}





function startparse () {



 $this->debug("startparse()");



 $this->parser = xml_parser_create();



 xml_set_object($this->parser,&$this);

 xml_set_element_handler($this->parser,  "startElement",  "endElement");

 xml_set_character_data_handler($this->parser,  "characterData");

 xml_parser_set_option($this->parser, XML_OPTION_CASE_FOLDING, 0);



 if (xml_parse($this->parser, '')) {

 	$this->parse_started = 1;

 	return 1;

 }



 return 0;

}





function parse () {

 

 $this->debug("parse()");



 if (!$this->rax_opened) return 0;

 if ($this->parse_done) return 0;



 if (!$this->parse_started) 

 	if (!$this->startparse()) return 0;



 if ($this->xml_file) {



 	$buffer = fread($this->xml_file, 4096);



 	if ( $buffer )

   xml_parse( $this->parser, $buffer, feof($this->xml_file) );

 	else {

   $this->parse_done = 1;

 	}



 }

 else {

 	xml_parse($this->parser, $this->xml, 1);

 	$this->parse_done = 1;

 }



 return 1;

}





function startElement($parser, $name, $attrs) {

 

 $this->debug("startElement($name)");



 array_push($this->tag_stack, $name);



 if ( !$this->in_rec and !strcmp($name, $this->record_delim) ) {

 	$this->in_rec = 1;

 	$this->rec_lvl = sizeof($this->tag_stack);

 	$this->field_lvl = $this->rec_lvl + 1;

 }

 else if ( $this->in_rec and sizeof($this->tag_stack) == $this->field_lvl ) {

 	$this->in_field = 1;

 }



}





function endElement($parser, $name) {



 $this->debug("endElement($name)");



 array_pop($this->tag_stack);



 if ( $this->in_rec ) {



 	if ( sizeof($this->tag_stack) < $this->rec_lvl ) {

   $this->in_rec = 0;

   array_push( $this->records, new RAX_Record( $this->fields ) );

   $this->fields = array();

 	}

 	else if ( sizeof($this->tag_stack) < $this->field_lvl ) {

   $this->in_field = 0;

   $this->fields[$name] = $this->field_data;

   $this->field_data = '';

 	}



 }



}





function characterData ($parser, $data) {



 $this->debug("characterData($data)");



 if ( $this->in_field ) 

 	$this->field_data .= $data;



}





function setRecord ($delim) {



 $this->debug("setRecord($delim)");



 if ($this->parse_started) return 0;



 $this->record_delim = $delim;



 return 1;

}





function readRecord () {



 $this->debug("readRecord()");



 while ( !sizeof($this->records) and !$this->parse_done ) $this->parse();



 return array_shift($this->records);

}





function debug ($msg) {

 if ($this->debug) print "$msg<br />n";

}



}





class RAX_Record {



function RAX_Record ( $fields ) {



 $this->fields = $fields;



 $this->debug = 0;

}





function getFieldnames () {

 

 $this->debug("getFieldnames()");



 return array_keys( $this->fields );

}





function getField ( $field ) {

 

 $this->debug("getField($field)");



 return trim( $this->fields[$field] );

}





function getFields () {

 

 $this->debug("getFields()");



 return array_values( $this->fields );

}





function getRow () {

 

 $this->debug("getFields()");



 return $this->fields;

}





function debug ($msg) {

 if ($this->debug) print "$msg<br />n";

}



}

[/code]

[petrosz moss]

dzieki ale czy to zadziala z plikiem xml, ktory bede chcial zassac z innego serwera?

[gofer]

pewnie zadziała dwie odpowiedzi w jednym dniu na dwóch różnych forach - niezły jestem

kod zawdzięczamy koledze Pawłowi P. z tego forum, pozdr

[pneuma]

ten i inne podobne przykłady można znaleźć, na https://php.kedziora.info