暂存

vendor/illuminate/collections/functions.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace Illuminate\Support;
+
+if (! function_exists('Illuminate\Support\enum_value')) {
+    /**
+     * Return a scalar value for the given value that might be an enum.
+     *
+     * @internal
+     *
+     * @template TValue
+     * @template TDefault
+     *
+     * @param  TValue  $value
+     * @param  TDefault|callable(TValue): TDefault  $default
+     * @return ($value is empty ? TDefault : mixed)
+     */
+    function enum_value($value, $default = null)
+    {
+        return match (true) {
+            $value instanceof \BackedEnum => $value->value,
+            $value instanceof \UnitEnum => $value->name,
+
+            default => $value ?? value($default),
+        };
+    }
+}