<?php
 
function tekaTekiTeko(int $batas)
{
    // Validasi tipe dan nilai parameter
    if ($batas < 20 || $batas < 0) {
        throw new InvalidArgumentException("Parameter harus unsigned integer dan minimal bernilai 20.");
    }
 
    for ($i = 1; $i <= $batas; $i++) {
        $output = "";
 
        if ($i % 2 === 0) {
            $output .= "Teka";
        }
        if ($i % 3 === 0) {
            $output .= "Teki";
        }
        if ($i % 5 === 0) {
            $output .= "Teko";
        }
 
        // Jika tidak ada yang cocok, tampilkan angka
        echo ($output === "" ? $i : $output) . PHP_EOL;
    }
}
 
tekaTekiTeko(30);
 

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