unique array print without php function php

 <?php
$inputArray=array(2,3,4,5,6,2,8,10,4);

$outputArray = array();

foreach($inputArray as $inputArrayItem) {
    foreach($outputArray as $outputArrayItem) {
        if($inputArrayItem == $outputArrayItem) {
            continue 2;
        }
    }
    $outputArray[] = $inputArrayItem;
}
print_r($outputArray);

?>

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