Hoʻomaʻamaʻa PHP me ka hopena papa aʻo kumu PHP

ʻO ka helu prime he integer i ʻoi aku ma mua o 1 nona nā mea puʻunaue wale nō ʻo 1 a ʻo ia iho, e like me -2, 3, 5, 7, 11, etc.

Eia kekahi laʻana, he helu prima ka 17 no ka mea hiki ke puunaue wale ia e 1 a me 17. Akā naʻe, ʻaʻole ʻo 18 ka helu kumu no ka mea hiki ke puunaue ʻia e 2, 3, 6, 9 a me ka helu ponoʻī. He mau ala kēia e paʻi ai i ka helu nui ma waena o 1 a me 100 ma ka ʻōlelo papahana PHP.

Hoʻopuka ka code ma lalo nei i ka papa inoa o nā helu kumu ma waena o 1 a me 50 (ʻo ia hoʻi, nā helu i hiki ʻole ke puʻunaue ʻia e kekahi mea ʻē aʻe ma mua o 1 a i ʻole ka helu ponoʻī) me ka hoʻohana ʻana i kahi loop loop.

<?php 
$limit = 50;
$init = 2;
	
while(TRUE)
{
	$div = 2;
	if($init > $limit) 
	{
		break;
	}
	while(TRUE)
	{
		if($div > sqrt($init))
		{
			echo $init."  ";
			break;
		}
		if($init % $div == 0) 
		{
			break;
		}
		$div = $div + 1;
	}
	$init = $init + 1;
}

I loko o ka hopena, loaʻa iā mākouʻelua mau puka lou. Ho'āʻo ka loop while i loko me kēlā me kēia mea hoʻokaʻawale. Inā loaʻa i ka loop loop i kahi māhele, ʻaʻole prime ka helu, no laila e kū me ka paʻi ʻole ʻana i kekahi mea, a inā hele ka hoʻāʻo i ke kumu huinahā o ka helu, hiki iā mākou ke manaʻo he prime ka helu. Holo ka puka puka waho ma nā helu a pau ma waena o 1 a me 50. Ua haki kēia loop i ka wā i hiki ai mākou i ka haki o nā helu e hoʻāʻo ʻia.