Dear All,
I am new at PHP and XML. I am developing a site which I want to display weather information. The only data I need is temperature. Low and High. And maybe a string to show a cloud or a sun. only 3 data. here is a dummy view of what I want to achieve.
http://arubaguide.org/arubaguide3/index.php?page=default
I used a parse XML to PHP from a tutorial here at kirupa:
<?php
// The XML file that you wish to be parsed
$file = “http://xml.weather.yahoo.com/forecastrss?p=AAXX0002&u=c”;
// This function tells the parser what to do with the data once it reaches the contents
// that appear between tags.
function contents($parser, $data){
echo $data;
}
// This function tells the parser to place a <b> where it finds a start tag.
function startTag($parser, $data){
echo “<b>”;
}
// And this function tells the parser to replace the end tags with “<b><br />”
function endTag($parser, $data){
echo “</b><br />”;
}
// These lines create the parser and then set the functions for the parser to use when
// reading the document.
$xml_parser = xml_parser_create();
// Sets the functions for start and end tags
xml_set_element_handler($xml_parser, “startTag”, “endTag”);
// Sets the function for the contents/data
xml_set_character_data_handler($xml_parser, “contents”);
// Opens the file for reading
$fp = fopen($file, “r”);
// Read the file and save its contents as the variable “data”
$data = fread($fp, 80000);
// This if statement does two things. 1) it parses the document according to our
// functions created above. 2) If the parse fails for some reason it returns an
// error message and also tells us which line the error occured at.
if(!(xml_parse($xml_parser, $data, feof($fp)))){
die("Error on line " . xml_get_current_line_number($xml_parser));
}
// Free the memory used to create the parser
xml_parser_free($xml_parser);
// Close the file when you’re done reading it
fclose($fp);
?>
I used a yahoo weather feed for instance. But the result is a complete set of information I do not use:
http://www.arubaguide.org/xml_beginner.php
What PHP option should I use to select only the temperature and not to dislay the whole information? For instance to only select the low and high temperature?
I see this in the yahoo feed:
<yweather:forecast day=“Sun” date=“23 Sep 2007” low=“27” high=“32” text=“Partly Cloudy” code=“30” />
So I could “select” the high and low and text partly cloudy to display a could picture?
Something like this??
if (strcasecmp($name, “yweather:forecast[low]”) == 0) {
echo “$data”;
}
I am new to this. Please let me know if this could be done.
Regards,
Dwayne
