SimpleXML returning Object names with hyphens

Hey all, I've run into a snag trying to use some XML output from NOAA. The problem is that some of the fields it sends to me have a hyphen in the name. Simple XML then creates objects with hyphens in their name. So here's the object I am having issues with: object(SimpleXMLElement)#7 (2) { wind-speed => object(SimpleXMLElement)#9 (2) {

    name => string(10) Wind Speed
    value => array(37) {
      0 => string(1) 4
      1 => string(1) 4
      2 => string(1) 6
      3 => string(1) 4
      4 => string(1) 4
      5 => string(1) 4
      6 => string(1) 2
      7 => string(1) 0
      8 => string(1) 2
      9 => string(1) 8
      10 => string(1) 8
      11 => string(1) 8
      12 => string(1) 8
      13 => string(1) 8
      14 => string(1) 8
      15 => string(1) 8
      16 => string(1) 8
      17 => string(1) 6
      18 => string(1) 4
      19 => string(1) 6
      20 => string(1) 6
      21 => string(1) 8
      22 => string(2) 14
      23 => string(2) 12
      24 => string(2) 12
      25 => string(1) 8
      26 => string(1) 8
      27 => string(2) 10
      28 => string(2) 10
      29 => string(1) 8
      30 => string(2) 10
      31 => string(2) 10
      32 => string(2) 10
      33 => string(1) 8
      34 => string(1) 6
      35 => string(1) 8
      36 => string(2) 10
    }

} direction => object(SimpleXMLElement)#10 (2) {

    name => string(14) Wind Direction
    value => array(37) {
      0 => string(3) 240
      1 => string(3) 230
      2 => string(3) 220
      3 => string(3) 216
      4 => string(3) 210
      5 => string(3) 220
      6 => string(3) 230
      7 => string(3) 230
      8 => string(3) 218
      9 => string(3) 202
      10 => string(3) 160
      11 => string(3) 164
      12 => string(3) 168
      13 => string(3) 180
      14 => string(3) 190
      15 => string(3) 180
      16 => string(3) 170
      17 => string(3) 100
      18 => string(2) 30
      19 => string(3) 340
      20 => string(3) 288
      21 => string(3) 282
      22 => string(3) 330
      23 => string(3) 310
      24 => string(3) 314
      25 => string(3) 280
      26 => string(3) 286
      27 => string(3) 294
      28 => string(3) 296
      29 => string(3) 298
      30 => string(3) 306
      31 => string(3) 316
      32 => string(3) 316
      33 => string(3) 328
      34 => string(3) 338
      35 => string(3) 350
      36 => string(3) 350
    }

} } And here's my code issues: $xmlobj->data->parameters->direction access works fine. $xmlobj->data->parameters->direction->value works fine. Gives me the array. $xmlobj->data->parameters->wind-speed returns an int value of 0. $xmlobj->data->parameters->wind-speed->value gives me an error: Parse error: parse error, unexpected T_OBJECT_OPERATOR in noaa.php on line 59 So, what am I doing wrong? The only thing I can think of is the - in the wind-speed object name. Any help would be appreciated! -Charlie