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4 files changed, 70 insertions, 0 deletions

diff --git a/php/app.php b/php/app.php
new file mode 100644
index 0000000..cde972d
--- /dev/null
+++ b/php/app.php
@@ -0,0 +1,23 @@
+<?php
+
+ini_set('display_errors', 1);
+error_reporting(E_ALL);
+
+define('ROOT_DIR', __DIR__ . '/../');
+define('HTML_DIR', __DIR__ . '/../html/');
+define('PHP_DIR',  __DIR__ . '/../php/');
+
+require_once PHP_DIR . 'templates.php';
+
+$file = $_GET['file'] ?? 'index.html';
+
+$components = [
+    '{{HEADER}}'  => HTML_DIR . 'header.html',
+    '{{CONTENT}}' => ROOT_DIR . $file,
+    '{{FOOTER}}'  => PHP_DIR  . 'footer.php'
+];
+
+$app_html = template_process(HTML_DIR . 'app.html', $components);
+
+echo $app_html;
+?>
diff --git a/php/footer.php b/php/footer.php
new file mode 100644
index 0000000..4a32baf
--- /dev/null
+++ b/php/footer.php
@@ -0,0 +1,14 @@
+<?php
+
+require_once PHP_DIR . 'replace.php';
+
+$year = date('Y');
+
+$targets = [
+    '{{YEAR}}' => $year
+];
+
+$html = replace(HTML_DIR . 'footer.html', $targets);
+
+echo $html;
+?>
diff --git a/php/replace.php b/php/replace.php
new file mode 100644
index 0000000..70fdd25
--- /dev/null
+++ b/php/replace.php
@@ -0,0 +1,13 @@
+<?php
+
+function replace(string $templatePath, array $replacements = []): string {
+    $html = file_get_contents($templatePath);
+
+    foreach ($replacements as $placeholder => $replacementValue) {
+        $html = str_replace($placeholder, $replacementValue, $html);
+    }
+
+    return $html;
+}
+
+?>
diff --git a/php/templates.php b/php/templates.php
new file mode 100644
index 0000000..4ead3f8
--- /dev/null
+++ b/php/templates.php
@@ -0,0 +1,20 @@
+<?php
+
+function render_component(string $componentPath): string {
+    ob_start();
+    include($componentPath);
+    return ob_get_clean();
+}
+
+function template_process(string $template, array $components = []): string {
+    $html = file_get_contents($template);
+
+    foreach ($components as $placeholder => $componentPath) {
+        $injectedContent = render_component($componentPath);
+        $html = str_replace($placeholder, $injectedContent, $html);
+    }
+
+    return $html;
+}
+
+?>