{"status":"error","message":"Unknown mode asdf"}
<script>

    // Allgemeine Funktion
    function crudRequest(mode, table, data = {}, where = {}, callback) {
        $.ajax({
            type: 'POST',
            url: 'inc/crud.inc.php?mode=' + mode,
            data: JSON.stringify({table: table, data: data, where: where}),
            contentType: 'application/json',
            dataType: 'json',
            success: callback,
            error: function(xhr, status, error){
                console.error("AJAX error:", status, error);
            }
        });
    }




/* 
    // Beispielhafte Nutzung
    // CREATE Beispiel
    crudRequest('create', 'gps_reihen', {
        a_lat: 53.53,
        a_lng: 9.70,
        b_lat: 53.54,
        b_lng: 9.71,
        schlag_id: 23
    }, {}, function(response){
        if(response.status === 'success'){
            console.log("Neue Reihe gespeichert", response.data);
        }
    });

    // READ Beispiel
    crudRequest('read', 'gps_reihen', {}, {}, function(response){
        if(response.status === 'success'){
            console.table(response.data);
        }
    });

    // UPDATE Beispiel
    crudRequest('update', 'gps_reihen', {a_lat: 53.55}, {reihe_id: 12}, function(response){
        console.log(response);
    });

    // DELETE Beispiel
    crudRequest('delete', 'gps_reihen', {}, {reihe_id: 12}, function(response){
        console.log(response);
    });
*/
</script>