algoritma_angka.php

<?php 

$number = '1.345.679';

$number = str_replace('.', '', $number);

$output = '';

$length = strlen($number) - 1 ;

for ($i=0; $i <= $length; $i++) {

	$o = '';

	if ($length - $i > 0) {
		$o = str_repeat('0', $length - $i);
	}

	$output .= $number[$i].$o."\n";
}

echo($output);

algoritma_fibbonnaci.php

<?php 

if(isset($argv[1])) {
	print_r(fib($argv[1]));
} else {
	echo "Masukan angka php ".$argv[0]." <Jumlah angka> ";
}

function fib($n) {
	$f1=0;
	$f2=1;

	$fibList = [0];
	   
	for ($i=0; $i<$n; $i++) {
	 	$output = $f1 + $f2;
	  	
	  	array_push($fibList, $output);
	  	
	  	$f1 = $f2;
	  	$f2 = $output;
	}

	return $fibList;

}

algoritma_prima.php

<?php 

if(isset($argv[1])) {
	print_r(printPrime($argv[1]));
} else {
	echo "Masukan angka php ".$argv[0]." <Jumlah angka> ";
}

function printPrime($n) {

	$primeList = [];

	for ($i=1; $i <= $n; $i++) { 
	 	
	 	$counter = 0;

	 	for($x=1; $x <= $i; $x++) {
	      	if($i % $x == 0) {
			   $counter++;
			}
		}

		if ($counter == 2) {
			$primeList[] = $i;		
		}
	}

	return $primeList;
}