- new blog cms

app/View.php

@@ -0,0 +1,54 @@
+<?php
+declare(strict_types=1);
+
+namespace NeonBlog;
+
+final class View
+{
+    public static function e(mixed $value): string
+    {
+        return htmlspecialchars((string) $value, ENT_QUOTES | ENT_SUBSTITUTE, 'UTF-8');
+    }
+
+    /** @param array<string, mixed> $query */
+    public static function url(string $path = '', array $query = []): string
+    {
+        $path = '/' . ltrim($path, '/');
+        if ($path !== '/' && str_ends_with($path, '/')) {
+            $path = rtrim($path, '/');
+        }
+
+        return $query === [] ? $path : $path . '?' . http_build_query($query);
+    }
+
+    /** @param array<string, mixed> $item */
+    public static function itemUrl(array $item): string
+    {
+        $slug = (string) ($item['slug'] ?? '');
+        return ($item['type'] ?? 'post') === 'page'
+            ? self::url($slug)
+            : self::url('post/' . $slug);
+    }
+
+    public static function asset(string $path): string
+    {
+        return self::url('themes/neon/assets/' . ltrim($path, '/'));
+    }
+
+    public static function date(string $iso, string $format = 'M j, Y'): string
+    {
+        $time = strtotime($iso);
+        return $time ? date($format, $time) : $iso;
+    }
+
+    public static function month(string $yearMonth): string
+    {
+        $time = strtotime($yearMonth . '-01');
+        return $time ? date('F Y', $time) : $yearMonth;
+    }
+
+    public static function classIf(bool $condition, string $class): string
+    {
+        return $condition ? ' ' . $class : '';
+    }
+}