xNightR00T File Manager

<?php

namespace DevBar\Data;

/**
 * Mapper to the JSON file with list of all available internal functions and classes
 */
class InternalFunctionsMapper
{
    /**
     *
     * @var string
     */
    protected static $internalFunctionsJsonFileName = null;

    /**
     *
     * @var array
     */
    protected static $data = null;

    /**
     *
     * @param string $internalFunctionsJsonFileName        	
     */
    public function __construct()
    {
        self::$internalFunctionsJsonFileName = __DIR__.'/../../../../../data/php_internal.list.json';
        $this->_loadFile();
    }

    /**
     * Get list of internal functions including extensions' functions
     *
     * @return array
     */
    public function getInternalFunctions()
    {
        return self::$data ['functions'];
    }

    /**
     * Get list of internal classes including extensions' classes
     *
     * @return array
     */
    public function getInternalClasses()
    {
        return self::$data ['classes'];
    }

    /**
     * read and decode list of functions and classes from JSON file
     */
    protected function _loadFile()
    {
        if (!is_null(self::$data)) {
            return;
        }

        // read the file
        $result = !empty(self::$internalFunctionsJsonFileName) && file_exists(self::$internalFunctionsJsonFileName) ? file_get_contents(self::$internalFunctionsJsonFileName)
                : '';
        if ($result === false) {
            $result = '';
        }

        // decode
        $result = json_decode($result, true);
        if ($result === false) {
            $internalFunctions = get_defined_functions();
            $internalFunctions = $internalFunctions ['internal'];
            $result            = array(
                'functions' => $internalFunctions,
                'classes' => array(),
            );
        }

        self::$data = $result;
    }
}