Insert google map in your website php code

<style>    
  #contact-map {
    height: 500px;
  }
</style>
<div id="contact-map"></div>

<script>
  var map;

  function initMap() {

    var myLatlng = new google.maps.LatLng(your lat,your lng);
    map = new google.maps.Map(document.getElementById('contact-map'), {
      center: myLatlng,
      zoom: 15
    });

    var marker = new google.maps.Marker({
        position: myLatlng,
        title:"TITLE "
    });
    marker.setMap(map);

  }


</script>
<script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyB5O1LcvjU5OnLyfwTr2dmo9zu_1zql_UQ&callback=initMap"
    async defer></script>