How to echo a specific value in an array? - php

Question

i am having a problem with a function that i have got online from somewhere, the issue is the function is supposed to return a specific value in an array but whenever i echo the function, it gives me a big array in the print_r style! here is the code:-
function USPSParcelRate() {
$userName = 'XXXXXXXXXXX';
$orig_zip = '10459';
//Shipping Request
$dest_zip = getshipinfo('zip_code');
foreach($_SESSION as $name=> $value){
if($value>0){
if(substr($name, 0, 5)=='cart_'){
if(substr($name, 0, 5)=='cart_'){
$id=substr($name, 5, (strlen($name)-5));
$query = mysql_query("SELECT `category`,`subcategory` FROM `items` WHERE `id`='".mysql_real_escape_string((int)$id)."' ");
while($query_row = mysql_fetch_assoc($query)){
$category = $query_row['category'];
$subcategory = $query_row['subcategory'];
}
$sql = mysql_query("SELECT `pounds`,`ounces` FROM `categories` WHERE `category`='".$category."' AND `subcategory`='".$subcategory."' ");
while($sql_row = mysql_fetch_assoc($sql)){
$pounds = $sql_row['pounds'];
$ounces = $sql_row['ounces'];
}
}
}
}
}
$url = "http://production.shippingapis.com/shippingapi.dll";
$ch = curl_init();
// set the target url
curl_setopt($ch, CURLOPT_URL,$url);
curl_setopt($ch, CURLOPT_HEADER, 1);
curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
// parameters to post
curl_setopt($ch, CURLOPT_POST, 1);
$data = "API=RateV4&XML=http://production.shippingapis.com/shippingapi.dll=<RateV4Request USERID='151ALHAD4911' >
<Revision/>
<Package ID='1ST'>
<Service>PRIORITY</Service>
<ZipOrigination>$orig_zip</ZipOrigination>
<ZipDestination>$dest_zip</ZipDestination>
<Pounds>$pounds</Pounds>
<Ounces>$ounces</Ounces>
<Container>NONRECTANGULAR</Container>
<Size>LARGE</Size>
<Width>12</Width>
<Length>15.5</Length>
<Height>6</Height>
<Girth>31</Girth>
</Package>
</RateV4Request>";
// send the POST values to USPS
curl_setopt($ch, CURLOPT_POSTFIELDS,$data);
$result=curl_exec ($ch);
$data = strstr($result, '<?');
// echo '<!-- '. $data. ' -->'; // Uncomment to show XML in comments
$xml_parser = xml_parser_create();
xml_parse_into_struct($xml_parser, $data, $vals, $index);
xml_parser_free($xml_parser);
$params = array();
$level = array();
foreach ($vals as $xml_elem) {
if ($xml_elem['type'] == 'open') {
if (array_key_exists('attributes',$xml_elem)) {
list($level[$xml_elem['level']],$extra) = array_values($xml_elem['attributes']);
} else {
$level[$xml_elem['level']] = $xml_elem['tag'];
}
}
if ($xml_elem['type'] == 'complete') {
$start_level = 1;
$php_stmt = '$params';
while($start_level < $xml_elem['level']) {
$php_stmt .= '[$level['.$start_level.']]';
$start_level++;
}
$php_stmt .= '[$xml_elem[\'tag\']] = $xml_elem[\'value\'];';
eval($php_stmt);
}
}
curl_close($ch);
//echo '<pre>'; print_r($params); echo'</pre>'; // Uncomment to see xml tags
return $params['RateV4Response']['1ST']['1']['RATE'];
}
echo USPSParcelRate();
this code doesn't give me any results unless i uncomment the print_r lines and it shows it like this:-
Array
(
[RATEV4RESPONSE] => Array
(
[1ST] => Array
(
[ZIPORIGINATION] => XXXXX
[ZIPDESTINATION] => XXXXX
[POUNDS] => 3
[OUNCES] => 5
[CONTAINER] => NONRECTANGULAR
[SIZE] => LARGE
[WIDTH] => 12
[LENGTH] => 16
[HEIGHT] => 6
[GIRTH] => 31
[ZONE] => 5
[1] => Array
(
[MAILSERVICE] => Priority Mail 3-Day<sup>™</sup>
[RATE] => 14.05
)
)
)
)
how can i echo the value of this line only :-
[RATE] => 14.05

Answer 1

Array keys are case sensitive, so...
return $params['RATEV4RESPONSE']['1ST'][1]['RATE'];
Should do it