More progress

solutions/other/numbergame.php

@@ -0,0 +1,26 @@
+<?php
+//$argv = ['', 556, 25, 75, 9, 4, 2, 9]; 
+//$argv = ['', 134, 100, 6, 1, 1, 6, 6 ];
+//$argv = ['', 306, 50, 1, 5, 1, 8, 7];
+$sum = (int)$argv[1]; 
+$input_numbers = array_slice($argv, 2);
+$operation = ['+','-','*','/'];
+
+$best_diff = $sum;
+while($best_diff != 0) {
+    shuffle($input_numbers);
+    $numbers = array_slice($input_numbers, random_int(1, sizeof($input_numbers)));
+
+    $exp = "";
+    foreach($numbers as $n){
+        $exp .= $n;
+        $exp .= $operation[random_int(0,3)];
+    }
+    $exp = substr($exp, 0, -1);
+    $s = eval("return $exp;");
+
+    if(abs($sum - $s) < $best_diff) {
+        $best_diff = abs($sum - $s);
+        echo "Found: $best_diff =\t$exp\n";
+    }
+}