Various incomplete solutions

ProjectEuler/031/desc.yml

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+title: Investigating combinations of English currency denominations.
+url: http://projecteuler.net/problem=31
+
+desc: |
+  In England the currency is made up of pound, £ and pence, p, and there are eight coins in general circulation:
+  1p, 2p, 5p, 10p, 20p, 50p, ñ (100p) and £ (200p).
+  It is possible to make £ in the following way:
+  1£ + 150p + 220p + 15p + 12p + 31p
+  How many different ways can £ be made using any number of coins?
+solution: Define the target value as 200 to simplify

ProjectEuler/031/solve.php

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+<?php
+$start = 200;
+
+for($c = 0; $c > $left; $c++);