Online PHP editor | refs for qlYl4

@ 2016-07-20T10:49:51Z

<?php
    $size = 4;//number of inputs
    $output = [];
    for($i=1;$i<$size;$i++){
        for($j=$i+1;$j<=$size;$j++){
            $output[] = "Input: $i-$j \n";
        }
    }
    echo implode("",$output);