Prime numbers in PHP
Write PHP program to take numbers from the user and print all prime numbers between the given range.
prime number between 1 to 100 in php
<?php
echo'prime number between 1 to 100 are:</br>';
for($i=1;$i<=100;$i++)
{
$b=0;
for($j=1;$j<=$i;$j++)
{
if($i%$j==0)
{
$b=$b+1;
}
}
if($b==2)
{
echo ' '.$i;
}
}
?>output
prime number between 1 to 100 are: 2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 73 79 83 89 97
Program to print all prime number between 1 to given range by using HTML form
<!DOCTYPE html>
<html lang="en">
<head>
<title>Print all prime number from 1 to given range</title>
</head>
<body>
<form>
<label> Enter the number </label> <input type="number" name="PrimeNumber">
<input type="submit" value="submit" name="submitForm"></br></br>
</form>
</body>
</html>
<?php
if(isset($_GET["submitForm"]))
{
$num=$_GET['PrimeNumber'];
echo'prime number between 1 to '.$num.' are:</br>';
for($i=1; $i<=$num; $i++)
{
$b=0;
for($j=1;$j<=$i;$j++)
{
if($i%$j==0)
{
$b=$b+1;
}
}
if($b==2)
{
echo ' '.$i;
}
}
}
?>output
