用PHP语言从geoJSON多维数组中检索坐标

<?php
// 示例geoJSON多维数组
$geoJSON = [
    "type" => "FeatureCollection",
    "features" => [
        [
            "type" => "Feature",
            "geometry" => [
                "type" => "Point",
                "coordinates" => [102.0, 0.5]
            ],
            "properties" => [
                "name" => "Location 1"
            ]
        ],
        [
            "type" => "Feature",
            "geometry" => [
                "type" => "Point",
                "coordinates" => [103.0, 1.5]
            ],
            "properties" => [
                "name" => "Location 2"
            ]
        ],
        // 更多feature...
    ]
];

// 从geoJSON多维数组中检索坐标
function retrieveCoordinates($geoJSON) {
    $coordinates = [];
    
    foreach ($geoJSON['features'] as $feature) {
        if ($feature['geometry']['type'] === 'Point') {
            $coordinates[] = $feature['geometry']['coordinates'];
        }
    }
    
    return $coordinates;
}

// 调用函数并打印结果
$coordinates = retrieveCoordinates($geoJSON);
print_r($coordinates);
?>

Array
(
    [0] => Array
        (
            [0] => 102
            [1] => 0.5
        )

    [1] => Array
        (
            [0] => 103
            [1] => 1.5
        )

)