Begin web app frontend in PHP.main

While I'd like a command line client for retreiving information and
scripting stuff based on the db contents, a web app is convenient for
the less common stuff like adding and editing data.

The web app could also have been done in rust, however, I feel php is so
convenient for simple web stuff that I think it makes more sense this
way.

1 files changed, 36 insertions, 0 deletions

diff --git a/web/include/misc.php b/web/include/misc.php
new file mode 100644
index 0000000..15b5cea
--- /dev/null
+++ b/web/include/misc.php
@@ -0,0 +1,36 @@
+<?php
+/**
+ * Misc utility functions
+ *
+ * @package volse.faktura.web
+ */
+
+/**
+ * Escape an input string so that it's safe fr use in a html context.
+ *
+ * @param string $input   The unescaped input string.
+ *
+ * @return A string that's safe for use in html tags.
+ */
+function esc_html(?string $input): string {
+	if (empty($input)) {
+		return '';
+	}
+
+	return htmlspecialchars($input, ENT_NOQUOTES | ENT_HTML5);
+}
+
+/**
+ * Escape input so that it's safe for use in html attrubutes.
+ *
+ * @param string $input   The unescaped input string.
+ *
+ * @return A string that's safe for use in html attibutes.
+ */
+function esc_attr(?string $input): string {
+	if (empty($input)) {
+		return '';
+	}
+
+	return htmlspecialchars($input, ENT_QUOTES | ENT_HTML5);
+}