Programming interview question

solution-1.php

<?php
/*
Output a list of numbers multiple times depending on their value (e.g. output 9 nine times, or 18 eighteen times). Works well if it doesn't matter if you listall the numbers preceding the last number
*/
$array = array(1,2,3,4,5,6,7,8,9,12,18);

foreach ($array as $num) {
	$string = '';
	$count = 1 * $num;
	for ($i=0;$i < $count; $i++) {
		$string .= (string)$num;
	}

	echo $string.PHP_EOL;
}

exit;

solution-2.php

<?php
/*
Output a list of numbers multiple times depending on their value and the numbers that precede the last number (e.g. output 9 nine times but also output 8 eight times, 7 seven times, etc...).
*/
$num = 9;

if ($num > 1) {
	$count = $num - ($num - 1);
} else {
	$count = 0;
}

for ($count;$count <= $num; $count++) {
	$string = '';

	for ($i=0; $i < $count; $i++) {
		$string .= $count;
	}

	echo $string.PHP_EOL;
}
exit;