PHP gets the number divisible by 1 and itself

php gets the number within 89 that is divisible by 1 and itself. I can’t find a clue about this, so I’m looking for methods and guidance

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php gets the number within 89 that is divisible by 1 and itself. I can’t find a clue about this, so I’m looking for methods and guidance

I have encountered this problem. I remember I encountered it when I went to a company for an interview. I specially compiled it for you to refer to and it will be easy to understand.

<code>final function getPrimesNumber($number) {
    $primes = array ();
    for($i = 1; $i < $number; $i ++) {
        for($j = 2; $j < $i; $j ++) {
            if ($i % $j == 0) {
                continue 2;
            }
        }
        $primes [] = $i;
    }
    return $primes;
}</code>

It isonlya number that can be divisible by 1 and itself, that is, a prime number, right?

<code>$max = 89;

for($i = 1; $i <= $max; $i++) {
    $k = 0;
    for($j = 1; $j < $i; $j++) {
        if($i % $j == 0) {
           $k++; 
        }
    }
    if($k == 1) {
        echo $i . '\n';
    }
}</code>