Can you tell me how can I add pagination on a multi select inputs search

Hello guys im new in PHP and I code a multi search value (3 select inputs) and all works perfect but i dont have an idea to create the pagination for this code, this is the code i have can you please tell me how to do the pagination ?

HERE IS THE CODE




<form action="<?php echo htmlentities($_SERVER['PHP_SELF']); ?>" method='POST'>
	<p>Tipo</p>
	<select name="opt1">
		<option selected>all</option>
		<option value="apartamentos">Apartamentos</option>
		<option value="nave">Naves</option>
		<option value="penthouse">Penthouse</option>
		<option value="residencia">Residencias</option>
		<option value="villa">Villas</option>
	</select>
	<p>Ciudad</p>
	<select name="opt2">
		<option selected>all</option>
		<option value="santo domingo">Santo Domingo</option>
		<option value="santiago">Santiago</option>
		<option value="samana">Samana</option>
		<option value="punta cana">punta cana</option>
	</select>
	<p>Precios</p>	
	<select name="opt3">
		<option selected>all</option>
		<option value="terrenas">terrenas</option>
		<option value="bavaro">bavaro</option>
		<option value="naco">naco</option>
	</select>
	<input type='submit'>
</form>




&lt;?php 					
			include ("conexion.php");
			
			$opt1 = $_POST['opt1'];
			$opt2 = $_POST['opt2'];
			$opt3 = $_POST['opt3'];
			
			$result = mysql_query(" SELECT * FROM `inmuebles` WHERE tipo = '".$opt1."' OR ciudad = '".$opt2."' OR sector = '".$opt3."'  ");
										
			if (mysql_num_rows($result)) {
				echo "&lt;ul id='tiles'&gt;";
				while ($row = mysql_fetch_array($result)) {
				echo "
					&lt;li style='position:relative;top:0;' data-filter-class='['" .$row["tipo"]. "', '" .$row["etiquetas"]. "']'&gt;
								&lt;a href='" .$row["perfil"]. "'&gt;
									&lt;div&gt;
										&lt;div class='sombra'&gt;
											&lt;h4&gt;" .$row["tipo"]. "&lt;/h4&gt;
											&lt;p&gt;" .$row["direccion"]. "&lt;/p&gt;
											&lt;p&gt;" .$row["moneda"]. " " .$row["precio"]. "&lt;/p&gt;
										&lt;/div&gt;	
									&lt;/div&gt;
									&lt;img src='images/" .$row["foto1"]. "'&gt;
								&lt;/a&gt;
							&lt;/li&gt;
				";
				}
				echo "&lt;/ul&gt;";
			}
		?&gt;


Any help is appreciated