true, 'chgrp' => true, 'chmod' => true, 'chown' => true, 'chroot' => true, 'copy' => true, 'file_get_contents' => true, 'file_put_contents' => true, 'opendir' => true, 'readdir' => true, 'closedir' => true, 'rewinddir' => true, 'scandir' => true, 'fopen' => true, 'fread' => true, 'fwrite' => true, 'fclose' => true, 'touch' => true, 'fpassthru' => true, 'fputs' => true, 'fscanf' => true, 'fseek' => true, 'flock' => true, 'ftruncate' => true, 'fprintf' => true, 'symlink' => true, 'mkdir' => true, 'unlink' => true, 'rename' => true, 'rmdir' => true, 'popen' => true, 'pclose' => true, 'fgetcsv' => true, 'fputcsv' => true, 'umask' => true, 'finfo_open' => true, 'finfo_close' => true, 'finfo_file' => true, 'stream_set_timeout' => true, 'fgets' => true, 'fflush' => true, 'move_uploaded_file' => true, 'file_exists' => true, 'realpath' => true, 'glob' => true, 'is_readable' => true, 'is_dir' => true, 'is_file' => true, // stream/socket io 'stream_context_set_option' => true, 'socket_write' => true, 'stream_set_blocking' => true, 'socket_close' => true, 'socket_set_option' => true, 'stream_set_write_buffer' => true, 'stream_socket_enable_crypto' => true, 'stream_copy_to_stream' => true, 'stream_wrapper_register' => true, 'socket_connect' => true, 'socket_bind' => true, 'socket_set_block' => true, 'socket_set_nonblock' => true, 'socket_listen' => true, 'stream_socket_shutdown' => true, 'socket_shutdown' => true, // meta calls 'call_user_func' => true, 'call_user_func_array' => true, 'define' => true, 'create_function' => true, // http 'header' => true, 'header_remove' => true, 'http_response_code' => true, 'setcookie' => true, 'setrawcookie' => true, // output buffer 'ob_start' => true, 'ob_end_clean' => true, 'ob_get_clean' => true, 'readfile' => true, 'readgzfile' => true, 'printf' => true, 'var_dump' => true, 'phpinfo' => true, 'ob_implicit_flush' => true, 'vprintf' => true, // mcrypt 'mcrypt_generic_init' => true, 'mcrypt_generic_deinit' => true, 'mcrypt_module_close' => true, // internal optimisation 'clearstatcache' => true, // process-related 'pcntl_signal' => true, 'pcntl_alarm' => true, 'posix_kill' => true, 'cli_set_process_title' => true, 'pcntl_async_signals' => true, 'proc_close' => true, 'proc_nice' => true, 'proc_open' => true, 'proc_terminate' => true, // curl 'curl_setopt' => true, 'curl_close' => true, 'curl_multi_add_handle' => true, 'curl_multi_remove_handle' => true, 'curl_multi_select' => true, 'curl_multi_close' => true, 'curl_setopt_array' => true, // apc, apcu 'apc_store' => true, 'apc_delete' => true, 'apc_clear_cache' => true, 'apc_add' => true, 'apc_inc' => true, 'apc_dec' => true, 'apc_cas' => true, 'apcu_store' => true, 'apcu_delete' => true, 'apcu_clear_cache' => true, 'apcu_add' => true, 'apcu_inc' => true, 'apcu_dec' => true, 'apcu_cas' => true, // gz 'gzwrite' => true, 'gzrewind' => true, 'gzseek' => true, 'gzclose' => true, // newrelic 'newrelic_start_transaction' => true, 'newrelic_name_transaction' => true, 'newrelic_add_custom_parameter' => true, 'newrelic_add_custom_tracer' => true, 'newrelic_background_job' => true, 'newrelic_end_transaction' => true, 'newrelic_set_appname' => true, // execution 'shell_exec' => true, 'exec' => true, 'system' => true, 'passthru' => true, 'pcntl_exec' => true, // well-known functions 'libxml_use_internal_errors' => true, 'libxml_disable_entity_loader' => true, 'curl_exec' => true, 'mt_srand' => true, 'openssl_pkcs7_sign' => true, 'openssl_sign' => true, 'mt_rand' => true, 'rand' => true, 'random_int' => true, 'random_bytes' => true, 'wincache_ucache_delete' => true, 'wincache_ucache_set' => true, 'wincache_ucache_inc' => true, 'class_alias' => true, 'class_exists' => true, // impure by virtue of triggering autoloader 'enum_exists' => true, // impure by virtue of triggering autoloader // php environment 'ini_set' => true, 'sleep' => true, 'usleep' => true, 'register_shutdown_function' => true, 'error_reporting' => true, 'register_tick_function' => true, 'unregister_tick_function' => true, 'set_error_handler' => true, 'user_error' => true, 'trigger_error' => true, 'restore_error_handler' => true, 'date_default_timezone_set' => true, 'assert_options' => true, 'setlocale' => true, 'set_exception_handler' => true, 'set_time_limit' => true, 'putenv' => true, 'spl_autoload_register' => true, 'spl_autoload_unregister' => true, 'microtime' => true, 'array_rand' => true, 'set_include_path' => true, // logging 'openlog' => true, 'syslog' => true, 'error_log' => true, 'define_syslog_variables' => true, // session 'session_id' => true, 'session_decode' => true, 'session_name' => true, 'session_set_cookie_params' => true, 'session_set_save_handler' => true, 'session_regenerate_id' => true, 'mb_internal_encoding' => true, 'session_start' => true, 'session_cache_limiter' => true, // ldap 'ldap_set_option' => true, // iterators 'rewind' => true, 'iterator_apply' => true, 'iterator_to_array' => true, // mysqli 'mysqli_select_db' => true, 'mysqli_dump_debug_info' => true, 'mysqli_kill' => true, 'mysqli_multi_query' => true, 'mysqli_next_result' => true, 'mysqli_options' => true, 'mysqli_ping' => true, 'mysqli_query' => true, 'mysqli_report' => true, 'mysqli_rollback' => true, 'mysqli_savepoint' => true, 'mysqli_set_charset' => true, 'mysqli_ssl_set' => true, 'mysqli_close' => true, // script execution 'ignore_user_abort' => true, // ftp 'ftp_close' => true, 'ftp_pasv' => true, // bcmath 'bcscale' => true, // json 'json_last_error' => true, // opcache 'opcache_compile_file' => true, 'opcache_get_configuration' => true, 'opcache_get_status' => true, 'opcache_invalidate' => true, 'opcache_is_script_cached' => true, 'opcache_reset' => true, //gettext 'bindtextdomain' => true, // hash 'hash_update' => true, 'hash_update_file' => true, 'hash_update_stream' => true, // unserialize 'unserialize' => true, // openssl 'openssl_csr_export_to_file' => true, 'openssl_pkcs12_export_to_file' => true, 'openssl_pkey_export_to_file' => true, 'openssl_x509_export_to_file' => true, // xml 'xml_parser_set_option' => true, 'xml_parser_free' => true, // mail 'mail' => true, ];