- end: documentation ( source)
- array_filter: documentation ( source)
- key: documentation ( source)
<?php
$array = [0,0,0,0,0,0,500 ,11000,100,110,221,1245,2141,0,0,0,0,0];
$result = array_filter($array);
echo 'fisrt: '.key($result);
end($result);
echo "</br>";
echo 'last: '.key($result);