Add function to generate selection boxes.

1 files changed, 26 insertions, 0 deletions

diff --git a/includes/view-helpers/select_field.php b/includes/view-helpers/select_field.php
new file mode 100644
index 0000000..7cff3ef
--- /dev/null
+++ b/includes/view-helpers/select_field.php
@@ -0,0 +1,26 @@
+<?php
+// SPDX-FileCopyrightText: 2021 Andrea Chirulescu <andrea.chirulescu@gmail.com>
+// SPDX-FileCopyrightText: 2021 Harald Eilertsen <haraldei@anduin.net>
+//
+// SPDX-License-Identifier: AGPL-3.0-or-later
+
+namespace EternalTerror\ViewHelpers;
+
+/**
+ * Return HTML code for a selction box with the given options and preselected value.
+ *
+ * @param string    $name     The name attribute for the selection box
+ * @param array     $opts     The options as arrays of [value, label] pairs
+ * @param mixed|int $selected The value of the preselected option, or null if no
+ *                            option is preselected.
+ * @return string
+ */
+function select_field(string $name, ?array $opts = [], $selected = null) : string
+{
+    $body = '';
+    foreach ($opts as $opt) {
+        $sel = selected($selected, $opt[0], false);
+        $body .= "<option value=\"{$opt[0]}\"{$sel}>{$opt[1]}</option>";
+    }
+    return "<select name=\"{$name}\">{$body}</select>";
+}