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Online Sandbox for SQL and PHP: Write, Run, Test, and Share SQL Queries and PHP Code
<?
function pyramid($n) {
if ($n == 0) return [];
$arr = [[]];
for ($i = 2; $i <= $n; $i++) {
array_push($arr, array_fill(0, $i, 1));
}
print_r($arr);
}
//pyramid(3); // ok
//pyramid(2); // ok
//pyramid(1); // ok
pyramid(0); // ok
?>