1 files changed, 22 insertions, 0 deletions
diff --git a/challenge-266/2colours/php/ch-2.php b/challenge-266/2colours/php/ch-2.php
new file mode 100644
index 0000000000..c8f7064f37
--- /dev/null
+++ b/challenge-266/2colours/php/ch-2.php
@@ -0,0 +1,22 @@
+<?php
+
+$matrix = json_decode(file_get_contents('php://stdin'));
+$size = count($matrix[0]); # let's hope it's actually a square matrix...
+
+// all 0's except for those 2 - which may be one if it's the middle
+function is_row_compliant($row, $diagonal_position, $size)
+{
+    $is_middle = $diagonal_position === $size - 1 - $diagonal_position;
+    return @array_count_values($row)[0] === $size - ($is_middle ? 1 : 2) && $row[$diagonal_position] !== 0 && $row[$size - 1 - $diagonal_position] !== 0;
+}
+
+//[$diagonal_position, $solution] = array_reduce($matrix, fn ($state, $row) => [$state[0] + 1, $state[1] && is_row_compliant($row, $state[0], $size)], [0, true]); # is this really worth it? :D
+$solution = true;
+foreach ($matrix as $row_index => $row) {
+    if (!is_row_compliant($row, $row_index, $size)) {
+        $solution = false;
+        break;
+    }
+}
+
+var_dump($solution);
+\ No newline at end of file