<?php

/**
 * Softafzar.Net | Developers home_
 * http://softafzar.net
 */
 
 
$num1 = 2;
$num2 = 200;

$col = 0;
echo "<h1>List of prime numbers from $num1 to $num2 </h1>";
echo '<table width="60%" border="1"><tr>';
foreach ( Prime ( $num1, $num2 ) as $item ) {
    if ($col >= 10) {
        echo '</tr><tr>';
        $col = 0;
    }
    echo "<td> $item </td>";
    $col ++;
}
echo '</tr></table>';

function Prime($num1, $num2) {
    $prime_numbers = array ();
    while ( $num1 < $num2 ) {
        $isprime=true;
        for($i = 2; $i <= sqrt ( $num1 ); $i ++) {
            if ($num1 % $i == 0)
                $isprime=false;
        }
        
        if ( $isprime ) {
            $prime_numbers [] = $num1;
        }
        $num1 ++;
    }
    return $prime_numbers;
}
?>

http://www.softafzar.net/thread1575.html/

List of prime numbers between two number

List of prime numbers between two number

php

PHP