fix PHP-7.4 compat

[mdref/mdref] / mdref / Tree.php

diff --git a/mdref/Tree.php b/mdref/Tree.php
index 357f99174f52e6811eb09865bdfe29ef2758c699..fc12a1c4233713fcc2535d3a30b63ce261a216a4 100644 (file)
--- a/mdref/Tree.php
+++ b/mdref/Tree.php
@@ -61,7 +61,7 @@ class Tree implements RecursiveIterator {
         */
        private function generateFilter(array $list) : \Closure {
                return function($v) use($list) {
-                       if ($v{0} === ".") {
+                       if ($v[0] === ".") {
                                return false;
                        }
                        if (false !== array_search("$v.md", $list, true)) {
@@ -85,11 +85,11 @@ class Tree implements RecursiveIterator {
                        $ab = basename($a, ".md");
                        $bb = basename($b, ".md");
 
-                       if ($ab{0} === ":" && $bb{0} === ":") {
+                       if ($ab[0] === ":" && $bb[0] === ":") {
                                return strcmp($ab, $bb);
-                       } elseif ($ab{0} === ":") {
+                       } elseif ($ab[0] === ":") {
                                return -1;
-                       } elseif ($bb{0} === ":") {
+                       } elseif ($bb[0] === ":") {
                                return 1;
                        }