How to transform string into array

Question

I get a result that way:

"POLYGON((-22.886145457836463 -43.118764097835, -22.88643210096987 -43.118324215556555, -22.886694032959 -43.117846782351904, -22.886763222456636 -43.11767512097))"

I need to turn into this shape:

lat=> -22.886145457836463, lng=>-43.118764097835,
lat=> -22.88643210096987, lng=>-43.118324215556555,
lat=> -22.886694032959, lng=>-43.117846782351904,
lat=> -22.886763222456636, lng=>-43.117846782351907

Thanks in advance.

Answer 1

You can use basic string handling functions.

Use the function str_replace() to remove the parentheses, and some undesirable spaces after the comma, leaving only the values.

Then use the function explode() to subdivide this string into an array, and with the help of a foreach add items to the final array with values:

$latLongString = "POLYGON((-22.886145457836463 -43.118764097835, -22.88643210096987 -43.118324215556555,-22.886694032959 -43.117846782351904, -22.886763222456636 -43.11767512097))";

$latLongString = str_replace(["POLYGON((","))"], "", $latLongString); // remover os parenteses deixando somente os valores;
$latLongString = str_replace(", ", ",", $latLongString); // remover os espaços depois das virgulas;

$arrayLatLong = array();

$valores = explode(",",$latLongString);
foreach($valores as $subVal){
  $latLong = explode(" ",$subVal);
  $arrayLatLong[]=array("lat"=> $latLong[0],"lng"=>$latLong[1]);
}

This way your output will be an array with this format:

array (size=4)
  0 =>
    array (size=2)
      'lat' => string '-22.886145457836463' (length=19)
      'lng' => string '-43.118764097835' (length=16)
  1 =>
    array (size=2)
      'lat' => string '-22.88643210096987' (length=18)
      'lng' => string '-43.118324215556555' (length=19)
  2 =>
    array (size=2)
      'lat' => string '-22.886694032959' (length=16)
      'lng' => string '-43.117846782351904' (length=19)
  3 =>
    array (size=2)
      'lat' => string '-22.886763222456636' (length=19)
      'lng' => string '-43.11767512097' (length=15)