plugin updates

wp/wp-content/plugins/wp-media-folder/class/import/compat.php

@@ -0,0 +1,69 @@
+<?php
+/**
+ * Implementation for WordPress functions missing in older WordPress versions.
+ */
+
+if (!function_exists('wp_slash_strings_only')) {
+    /**
+     * Adds slashes to only string values in an array of values.
+     *
+     * Compat for WordPress < 5.3.0.
+     *
+     * @param mixed $value Scalar or array of scalars.
+     * @return mixed Slashes $value
+     * @since 0.7.0
+     *
+     */
+    function wp_slash_strings_only($value)
+    {
+        return map_deep($value, 'addslashes_strings_only');
+    }
+}
+
+if (!function_exists('addslashes_strings_only')) {
+    /**
+     * Adds slashes only if the provided value is a string.
+     *
+     * Compat for WordPress < 5.3.0.
+     *
+     * @param mixed $value
+     * @return mixed
+     * @since 0.7.0
+     *
+     */
+    function addslashes_strings_only($value)
+    {
+        return is_string($value) ? addslashes($value) : $value;
+    }
+}
+
+if (!function_exists('map_deep')) {
+    /**
+     * Maps a function to all non-iterable elements of an array or an object.
+     *
+     * Compat for WordPress < 4.4.0.
+     *
+     * @param mixed $value The array, object, or scalar.
+     * @param callable $callback The function to map onto $value.
+     * @return mixed The value with the callback applied to all non-arrays and non-objects inside it.
+     * @since 0.7.0
+     *
+     */
+    function map_deep($value, $callback)
+    {
+        if (is_array($value)) {
+            foreach ($value as $index => $item) {
+                $value[$index] = map_deep($item, $callback);
+            }
+        } elseif (is_object($value)) {
+            $object_vars = get_object_vars($value);
+            foreach ($object_vars as $property_name => $property_value) {
+                $value->$property_name = map_deep($property_value, $callback);
+            }
+        } else {
+            $value = call_user_func($callback, $value);
+        }
+
+        return $value;
+    }
+}