First generate API Key from Here
After that pass your generated API key and address on following code..
<?php $address = "Okhala phase 2 new delhi"; $address = str_replace(" ","+", $address); ?> <iframe width="100%" height="400" frameborder="0" style="border:0" src="https://www.google.com/maps/embed/v1/place?key=YOUR_API_KEY &q=<?= $address ?>"> </iframe>
If you have latitude and longitude then you can also display street view on map by following code.
<?php $lat = 46.414382; $lng = 10.013988; ?> <iframe width="100%" height="400" frameborder="0" style="border:0" src="https://www.google.com/maps/embed/v1/streetview ?key=YOUR_API_KEY &location=<?= $lat ?>,<?= $lng ?>"> </iframe>