everyone, I've been using this code for quite a long time
<?php
$url = 'http://www.smn.gov.ar/mensajes/index.php?observacion=metar&operacion=consultar&87582=on&87641=on&87750=on&87765=on&87222=on&87761=on&87860=on&87395=on&87344=on&87166=on&87904=on&87571=on&87347=on&87803=on&87576=on&87162=on&87532=on&87497=on&87097=on&87046=on&87548=on&87217=on&87506=on&87692=on&87418=on&87574=on&87715=on&87374=on&87289=on&87852=on&87178=on&87896=on&87823=on&87270=on&87155=on&87453=on&87925=on&87934=on&87480=on&87047=on&87553=on&87311=on&87909=on&87436=on&87509=on&87912=on&87623=on&87444=on&87129=on&87371=on&87645=on&87022=on&87127=on&87828=on&87121=on&87938=on&87791=on&87448=on';
$dom = new DOMDocument();
libxml_use_internal_errors(true);
$dom->loadHTMLFile($url);
libxml_clear_errors();
$xpath = new DOMXpath($dom);
// search for td's containing METAR
$metars = $xpath->query('//td[contains(text(), "METAR SA")]');
if($metars->length <= 0) {
echo 'no metars found';
exit;
}
$data = array();
foreach($metars as $metar) {
$data[] = $metar->nodeValue;
}
echo '<pre>';
print_r($data);
Well, this was working fine, until the program in charge to read the output was updated and now it needs a clear output.
At the momment I'm getting this: http://ar.ivao.aero/weather/metar.php But the program needs it like this:
SABE 161600Z 02006KT 9999 FEW030 24/18 Q1009 =
SAZA 161600Z 18011KT CAVOK 24/08 Q1010 =
SAZB 161700Z 27012KT CAVOK 21/09 Q1011 =
I don't thought maybe using another script like a file_get_content() could be useful but again its going to show the infromation I don't want to. I also tried replacing print_r() by var_dump() but its the same
Any ideas? There is anyway to get this informatin in a simple txt file?
Regards,
You need to filter out some data. Try to find out what's common in the info you need to output. For instance, all the required info from your raw print_r data seems to beging with METAR. So
echo '<pre>';
foreach($metars as $metar) {
if(substr($metar->nodeValue, 0, 5) === "METAR") {
echo str_replace("METAR ", "", $metar->nodeValue) . PHP_EOL;
}
}
That removes any lines like Aeropuerto FORMOSA from the output.