<?php
$array = [1,2,3,4];
$isValid = true;
while($next = next($array)) { if($next <= $current) {
return $isValid = false;
}
$current = $next;
}
// -----
$array = [1,4,3,4];
$isValid = true;
while($next = next($array)) { if($next <= $current) {
$isValid = false;
break;
}
$current = $next;
}
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