prime number example in php

Here we are going to know how to create Prime Number
What is Prime Number  : Prime number divide only 1 or itself that is a prime number

Following is Prime Number Logic in PHP

Step 1. Start your variable from 2
Step 2. Set flag =0.
Step 3. Start your second variable means j from 2 and check in condition j <= i/2
Step 4. if i%j equal to 0 then flag=1 and break.
Step 5. if flag=0 then it is Prime Number

 
for($i=2;$i<=50;$i++)
{
    $flag=0;
        for($j=2;$j<=$i/2;$j++)
            if(($i%$j)==0)
            {
                $flag=1;
                break;
            }
        if($flag==0)
        echo $i.”is a prime number<br/>”;
}