composer-require-checker.json

    {
    "symbol-whitelist": [
        "apcu_add",
        "apcu_clear_cache",
        "apcu_delete",
        "apcu_exists",
        "apcu_fetch",
        "apcu_store",
        "apc_add",
        "apc_clear_cache",
        "apc_delete",
        "apc_delete_file",
        "apc_exists",
        "apc_fetch",
        "apc_store",
        "getallheaders",
        "http_get_request_headers",
        "igbinary_serialize",
        "Memcache",
        "Memcached",
        "opcache_invalidate",
        "posix_geteuid",
        "posix_isatty",
        "wincache_ucache_add",
        "wincache_ucache_clear",
        "wincache_ucache_delete",
        "wincache_ucache_exists",
        "wincache_ucache_get",
        "wincache_ucache_set",
        "XC_TYPE_VAR",
        "xcache_clear_cache",
        "xcache_count",
        "xcache_get",
        "xcache_isset",
        "xcache_set",
        "xcache_unset",
        "xdebug_get_function_stack",
        "YII2_PATH",
        "YII_BEGIN_TIME",
        "YII_DEBUG",
        "YII_ENABLE_ERROR_HANDLER",
        "YII_ENV",
        "YII_ENV_PROD",
        "YII_ENV_TEST",
        "zend_shm_cache_clear",
        "zend_shm_cache_delete",
        "zend_shm_cache_fetch",
        "zend_shm_cache_store"
    ]
}