PHP function to render string path template using nested array

render_string_path_template_using_nested_array.php

<?php

/**
 * PHP function to render string path template using nested array.
 * Renders template string like "Nested array item value: {data.some.nested.item.value}"
 * @param string $template
 * @param array $data
 * @return string
 */
public static function renderDataTemplate(string $template, array $data): string
{
    return preg_replace_callback('/{([^{}]+?)}/', static function ($v) use ($data) {
        $temp = &$data;
        foreach (explode('.', $v[1]) as $key) {
            $temp = &$temp[$key] ?? null;
            if ($temp === null) {
                return null;
            }
        }
        return $temp;
    }, $template);
}