HoangPV · September 20, 2017 08:00
diff --git a/is-prime.php b/is-prime.php
 <?php 

 /**
 * checks if a number is prime
 * 
 * @return  bool
 * @author  Phan Vu Hoang <[email protected]>
 */
 function la_snt( $n ) {
 	if($n < 2) return false;
 	if($n == 2) return true;
 	if($n%2==0) return false;

 	for ($i=3; $i <$n-1 ; $i+=2) { 
 		if($n%$i==0) return false;
 	}
 	return true;
 }
	<?php

	/**
	* checks if a number is prime
	*
	* @return bool
	* @author Phan Vu Hoang <[email protected]>
	*/
	function la_snt( $n ) {
	if($n < 2) return false;
	if($n == 2) return true;
	if($n%2==0) return false;

	for ($i=3; $i <$n-1 ; $i+=2) {
	if($n%$i==0) return false;
	}
	return true;
	}