Fibonacci jumlahkan angka genap dan pergantian string, Rat Maze cari jalan keluar untuk tikus

fibonacci.php

<?php
// Fungsi Fibonacci
function Fibonacci($batas){ 
  	echo "Hasil Deret : ";
    $angkaPertama = 1; 
    $angkaKedua = 2; 
  
    //$nKe = 0; 
    while ($angkaPertama < $batas){
    	$output = $angkaPertama;

    	//Golongkan Angka Genap (Even)
    	if($output % 2 == 0){
        	$output = '<strong>'.$angkaPertama.'</strong>';
        	$jumlahGenap += $angkaPertama;
        }
        //Hasil Deret 
        echo $output.', ';

        //Deret Selanjutnya 
        $hasil = $angkaPertama + $angkaKedua; 
        $angkaPertama = $angkaKedua; 
        $angkaKedua = $hasil;
        //$nKe = $nKe + 1; 
    }
    echo "<br /><br /> Total Penjumlahan Genap : ".$jumlahGenap; 
} 
  
// Hasil Akhir 
$n = 4000000; //Input Angka 4.000.000
Fibonacci($n); 

?>

maze.php

<?php
function ratMaze($input){
	$count_x = count($input);
	$count_y = count($input[0]);
	echo "Input Soal Labirin <br /> <br />";
	echo "<table border=1>";
	for ($x = 0; $x < $count_x; $x++) {
		echo "<tr>";
		for ($y = 0; $y < $count_y; $y++){
			echo "<td>".$input[$x][$y]."</td>";
		}
		echo "<tr />";	
	}
	echo "</table>";
	//TEST
	echo "<br />Uji Coba Jalan <br /><br />";
	if($input[0][0] == 0){
		echo "Tidak ada Jalan";
	} else {
		$base =
		[
			[0,0,0,0],
			[0,0,0,0],
			[0,0,0,0],
			[0,0,0,0]
		];
		$base[0][0] = $input[0][0];
		$uji = $input[0][0];
		$x = 0;
		$y = 0;
		while ($uji > 0) {
			//finished
			if ($x == $count_x-1 && $y == $count_y-1) { 
		        $base[$x][$y] = 1; 
		        $uji = 0; 
		    } 
		    
		    //Uji
		    if($input[$x][$y+1] == 1 && $input[$x+1][$y] == 0){
		    	$base[$x][$y+1] = 1;
		    	$x = $x;
		    	$y = $y+1;
		    	$uji = 1;
		    } elseif($input[$x][$y+1] == 0 && $input[$x+1][$y] == 1){
		    	$base[$x+1][$y] = 1;
		    	$x = $x+1;
		    	$y = $y;
		    	$uji = 1;
		    } elseif($input[$x][$y+1] == 1 && $input[$x+1][$y] == 1){
		    	if(findWay($input,$x+1,$y)){
		    		$base[$x+1][$y] = 1;
			    	$x = $x+1;
			    	$y = $y;
			    	$uji = 1;
		    	} elseif(findWay($input,$x,$y+1)){
		    		$base[$x][$y+1] = 1;
			    	$x = $x;
			    	$y = $y+1;
			    	$uji = 1;
		    	} else {
		    		$uji = 0;
		    	}
		    } else {
		    	$uji = 0;
		    }
		}

		echo "<table border=1>";
		//$base[1][3] = "X"; //x = Row y = Column

		for ($x = 0; $x < $count_x; $x++) {
			echo "<tr>";
			for ($y = 0; $y < $count_y; $y++){
				echo "<td>".$base[$x][$y]."</td>";
			}
			echo "<tr />";	
		}
		echo "</table>";
	}
}

function findWay($input, $x, $y) 
{ 
	$xc = count($input);
	$yc = count($input[0]);
	
    if ($x == $xc-1 && $y == $yc-1) { 
        return true; 
    } 
    
    if($input[$x][$y+1] == 1 && $input[$x+1][$y] == 0){
    	return true;
    } elseif($input[$x][$y+1] == 0 && $input[$x+1][$y] == 1){
    	return true;
    } elseif($input[$x][$y+1] == 1 && $input[$x+1][$y] == 1){
    	if(findWay($input, $x+1, $y)){
    		return true;
    	} elseif(findWay($input, $x, $y+1)) {
    		return true;
    	} else {
    		return false;
    	}
    	
    } else {
    	return false;
    }

    return false; 
}

//Uji Jalan Keluar
$maze = 
	[
		[1,1,1,1],
		[1,0,1,0],
		[1,1,0,0],
		[0,1,1,1]
	];
ratMaze($maze);
?>

replace.php

<?php
function LetterChanges($string){
	$ubah_huruf = strtr($string, 'abcdefghijklmnopqrstuvwxyz', 'bcdefghijklmnopqrstuvwxyza');
	$ubah_vokal = strtr($ubah_huruf, 'aiueo', 'AIUEO');
	echo "Input : ".$string."<br />";
	echo "Output : ".$ubah_vokal;
}
$input = "Testing untuk program";
LetterChanges($input);
?>