Online PHP editor | output for dDAaI

@ 2017-08-24T22:22:56Z

<?php

error_reporting(-1);

$total = 12;
$skip = 4;
$numberLeft = 1;

for ($i = 1; $i <= $total; $i++){
	$positions[$i] = $i;
}

for ($i = $total; $i >= $skip; $i--){
	if ($total - $numberLeft < $skip - 1){
        $numberLeft = $skip - ($total - $numberLeft) - 1;
	} else {
	    $numberLeft = $numberLeft + $skip - 1;
	}

	for($j = $numberLeft; $j < $total; $j++){
        $positions[$j] = $positions[$j+1];
	}

    unset($positions[$total]);
    $total--;
}

echo "Выигрышные места: ".implode(", ", $positions);

Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: Выигрышные места: 1, 2, 9
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Выигрышные места: 1, 2, 9

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