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  1. <?php
  2.  
  3. function DMS2Decimal($degrees = 0, $minutes = 0, $seconds = 0, $direction = 'n') {
  4.      //converts DMS coordinates to decimal
  5.      //returns false on bad inputs, decimal on success
  6.  
  7.      //direction must be n, s, e or w, case-insensitive
  8.      $d = strtolower($direction);
  9.      $ok = array('n', 's', 'e', 'w');
  10.  
  11.      //degrees must be integer between 0 and 180
  12.      if(!is_numeric($degrees) || $degrees < 0 || $degrees > 180) {
  13.           $decimal = false;
  14.      }
  15.      //minutes must be integer or float between 0 and 59
  16.      elseif(!is_numeric($minutes) || $minutes < 0 || $minutes > 59) {
  17.           $decimal = false;
  18.      }
  19.      //seconds must be integer or float between 0 and 59
  20.      elseif(!is_numeric($seconds) || $seconds < 0 || $seconds > 59) {
  21.           $decimal = false;
  22.      }
  23.      elseif(!in_array($d, $ok)) {
  24.           $decimal = false;
  25.      }
  26.      else {
  27.           //inputs clean, calculate
  28.           $decimal = $degrees + ($minutes / 60) + ($seconds / 3600);
  29.  
  30.           //reverse for south or west coordinates; north is assumed
  31.           if($d == 's' || $d == 'w') {
  32.                $decimal *= -1;
  33.           }
  34.      }
  35.  
  36.      return $decimal;
  37. }
  38.  
  39.  
  40.  
  41. echo "x: " . DMS2Decimal($degrees = 7, $minutes = 5, $seconds = 16, $direction = 'n');
  42.  
  43. echo "y: " . DMS2Decimal($degrees = 171, $minutes = 21, $seconds = 8, $direction = 'e');
  44.  
  45.  
  46.  
Success #stdin #stdout 0.01s 20520KB
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Standard input is empty
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x: 7.0877777777778y: 171.35222222222
https://ideone.com/h2xwAc
language:
PHP (php 7.3.5)
created:
12 years ago
visibility:
secret

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