<?php
 
function tekaTekiTeko(int $batas): void {
    if (!is_int($batas) || $batas < 20 || $batas < 0) {
        throw new InvalidArgumentException("Parameter harus berupa unsigned integer dan minimal 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";
 
        echo ($output !== "" ? $output : $i) . PHP_EOL;
    }
}
 
 
tekaTekiTeko(30);
 

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