PHP is_php函数代码示例

 public function initialize()
 {
     $php_min = '5.3';
     if (!is_php($php_min)) {
         throw new Exception('CI_Parser_lex: Requires PHP ' . $php_min . ' or above.');
     }
     $this->ci = get_instance();
     // Default configuration options.
     $this->config = array('cumulative_noparse' => false, 'scope_glue' => '.', 'allow_php' => false, 'full_path' => false);
     if ($this->ci->config->load('parser_lex', TRUE, TRUE)) {
         $defaults = $this->ci->config->item('parser_lex');
         if (array_key_exists('allowed_functions', $defaults)) {
             unset($defaults['allowed_functions']);
         }
         if (array_key_exists('allowed_globals', $defaults)) {
             unset($defaults['allowed_globals']);
         }
         if (array_key_exists('disabled_config_settings', $defaults)) {
             unset($defaults['disabled_config_settings']);
         }
         $this->config = array_merge($this->config, $defaults);
     }
     // Injecting configuration options directly.
     if (isset($this->_parent) && !empty($this->_parent->params) && is_array($this->_parent->params)) {
         $this->config = array_merge($this->config, $this->_parent->params);
         if (array_key_exists('parser_driver', $this->config)) {
             unset($this->config['parser_driver']);
         }
     }
     log_message('info', 'CI_Parser_lex Class Initialized');
 }

 function preg_error_message($code = null)
 {
     if ($code === null) {
         $code = preg_last_error();
     }
     $code = (int) $code;
     switch ($code) {
         case PREG_NO_ERROR:
             $result = 'PCRE: No error, probably invalid regular expression.';
             break;
         case PREG_INTERNAL_ERROR:
             $result = 'PCRE: Internal error.';
             break;
         case PREG_BACKTRACK_LIMIT_ERROR:
             $result = 'PCRE: Backtrack limit has been exhausted.';
             break;
         case PREG_RECURSION_LIMIT_ERROR:
             $result = 'PCRE: Recursion limit has been exhausted.';
             break;
         case PREG_BAD_UTF8_ERROR:
             $result = 'PCRE: Malformed UTF-8 data.';
             break;
         default:
             if (is_php('5.3') && $code == PREG_BAD_UTF8_OFFSET_ERROR) {
                 $result = 'PCRE: Did not end at a valid UTF-8 codepoint.';
             } elseif (is_php('7') && $code == PREG_JIT_STACKLIMIT_ERROR) {
                 $result = 'PCRE: Failed because of limited JIT stack space.';
             } else {
                 $result = 'PCRE: Error ' . $code . '.';
             }
             break;
     }
     return $result;
 }

 function __construct($params)
 {
     parent::__construct($params);
     // clause and character used for LIKE escape sequences
     if (strpos($this->hostname, 'mysql') !== FALSE) {
         $this->_like_escape_str = '';
         $this->_like_escape_chr = '';
         //Prior to this version, the charset can't be set in the dsn
         if (is_php('5.3.6')) {
             $this->hostname .= ";charset={$this->char_set}";
         }
         //Set the charset with the connection options
         $this->options['PDO::MYSQL_ATTR_INIT_COMMAND'] = "SET NAMES {$this->char_set}";
     } elseif (strpos($this->hostname, 'odbc') !== FALSE) {
         $this->_like_escape_str = " {escape '%s'} ";
         $this->_like_escape_chr = '!';
     } else {
         $this->_like_escape_str = " ESCAPE '%s' ";
         $this->_like_escape_chr = '!';
     }
     /**
      * @link http://stackoverflow.com/questions/11054618/codeigniter-pdo-database-driver-not-working
      */
     // empty($this->database) OR $this->hostname .= ';dbname='.$this->database;
     $this->hostname = 'mysql:dbname=' . $this->database . ';host=' . $this->hostname;
     $this->trans_enabled = FALSE;
     $this->_random_keyword = ' RND(' . time() . ')';
     // database specific random keyword
 }

 /**
  * Tests for file writability 测试文件可写性
  *
  * is_writable() returns TRUE on Windows servers when you really can't write to
  * the file, based on the read-only attribute. is_writable() is also unreliable
  * on Unix servers if safe_mode is on.
  *is_writable()返回TRUE在Windows服务器上,当你真的不能写入文件,根据只读属性。is_writable()也在Unix服务器如果safe_mode是不可靠的。
  *
  * @link	https://bugs.php.net/bug.php?id=54709
  * @param	string
  * @return	bool
  */
 function is_really_writable($file)
 {
     // If we're on a Unix server with safe_mode off we call is_writable 如果我们在Unix服务器safe_mode我们称之为is_writable
     if (DIRECTORY_SEPARATOR === '/' && (is_php('5.4') or !ini_get('safe_mode'))) {
         return is_writable($file);
     }
     /* For Windows servers and safe_mode "on" installations we'll actually
      * write a file then read it. Bah...
      * Windows服务器和safe_mode”在“安装我们会写一个文件然后读它。呸……
      */
     if (is_dir($file)) {
         $file = rtrim($file, '/') . '/' . md5(mt_rand());
         if (($fp = @fopen($file, 'ab')) === FALSE) {
             return FALSE;
         }
         fclose($fp);
         @chmod($file, 0777);
         @unlink($file);
         return TRUE;
     } elseif (!is_file($file) or ($fp = @fopen($file, 'ab')) === FALSE) {
         return FALSE;
     }
     fclose($fp);
     return TRUE;
 }

 public function __construct()
 {
     $php_required = '5.5';
     if (is_php($php_required)) {
         require_once APPPATH . 'third_party/guzzle/autoloader.php';
     }
 }

 protected function _load()
 {
     if ($this->_isLoaded) {
         return;
     }
     static $types = array('model', 'modelProperty', 'controller', 'controlSet', 'control');
     $modulePath = kanon::getBasePath() . '/modules/' . $this->_name;
     if (is_file($modulePath . '/module.php') && is_php($modulePath . '/module.php')) {
         include $modulePath . '/module.php';
         $this->_autoload = $autoload;
         foreach ($this->_autoload as $class => $filename) {
             $classFilename = $modulePath . '/' . $filename;
             if (is_file($classFilename) && is_php($classFilename)) {
                 require_once $classFilename;
                 $type = '';
                 $r = new ReflectionClass($class);
                 foreach ($types as $checkType) {
                     if ($r->isSubclassOf($checkType)) {
                         $type = $checkType;
                     }
                 }
                 $this->_classes[$type][$class] = $filename;
             }
         }
     }
     $this->_isLoaded = true;
 }

 function index()
 {
     if (!isset($this->user->level) || $this->user->level['admin'] == 0) {
         redirect('admin/unauthorized/admin/1');
     }
     if ($this->user->email == '') {
         $this->session->set_flashdata('notification', __("Please set your email", $this->template['module']));
         redirect('admin/member/edit');
     }
     // Get News
     // Get News if Php version smaller than 5.3.0
     $news = array();
     $news2 = array();
     if (!is_php('5.3.0')) {
         $this->load->library('Simplepie');
         $this->simplepie->set_feed_url('http://ci-cms.blogspot.com/feeds/posts/default/-/news');
         $this->simplepie->set_cache_location('./cache');
         $this->simplepie->init();
         $this->simplepie->handle_content_type();
         $news = $this->simplepie->get_items();
         // Get Development News
         $this->simplepie2 = new SimplePie();
         $this->simplepie2->set_feed_url('http://bitbucket.org/hery/ci-cms/rss?token=ffaaafc0111cc8100198a44b5c263671');
         $this->simplepie2->set_cache_location('./cache');
         $this->simplepie2->init();
         $this->simplepie2->handle_content_type();
         $news2 = $this->simplepie2->get_items();
     }
     // Save news if avaliable
     $this->template['cicms_news'] = $news;
     $this->template['cicms2_news'] = $news2;
     $this->layout->load($this->template, 'index');
 }

 /**
  * Constructor
  *
  * Calls the initialize() function
  */
 function Controller()
 {
     parent::CI_Base();
     // Assign all the class objects that were instantiated by the
     // bootstrap file (CodeIgniter.php) to local class variables
     // so that CI can run as one big super object.
     foreach (is_loaded() as $var => $class) {
         $this->{$var} =& load_class($class);
     }
     // In PHP 5 the Loader class is run as a discreet
     // class.  In PHP 4 it extends the Controller @PHP4
     if (is_php('5.0.0') == TRUE) {
         $this->load =& load_class('Loader', 'core');
         $this->load->_base_classes =& is_loaded();
         $this->load->_ci_autoloader();
     } else {
         $this->_ci_autoloader();
         // sync up the objects since PHP4 was working from a copy
         foreach (array_keys(get_object_vars($this)) as $attribute) {
             if (is_object($this->{$attribute})) {
                 $this->load->{$attribute} =& $this->{$attribute};
             }
         }
     }
     log_message('debug', "Controller Class Initialized");
 }

    public function index()
    {
        $php_required = '5.5';
        $this->load->helper('url');
        $result = null;
        $status_code = null;
        $content_type = null;
        $code_example = <<<EOT

        \$user_id = 1;

        \$this->load->helper('url');

        \$client = new GuzzleHttp\\Client();
        \$res = \$client->get(site_url('playground/rest/server-api-example/users/id/'.\$user_id.'/format/json'), ['auth' =>  ['admin', '1234']]);

        \$result = (string) \$res->getBody();
        \$status_code = \$res->getStatusCode();

        \$content_type = \$res->getHeader('content-type');
        \$content_type = is_array(\$content_type) ? \$content_type[0] : \$content_type;

EOT;
        if (is_php($php_required)) {
            eval($code_example);
        }
        $this->template->set(compact('php_required', 'code_example', 'result', 'status_code', 'content_type'))->build('rest/guzzle');
    }

 function __construct($params)
 {
     parent::__construct($params);
     // clause and character used for LIKE escape sequences
     if (strpos($this->hostname, 'mysql') !== FALSE) {
         $this->_like_escape_str = '';
         $this->_like_escape_chr = '';
         //Prior to this version, the charset can't be set in the dsn
         if (is_php('5.3.6')) {
             $this->hostname .= ";charset={$this->char_set}";
         }
         //Set the charset with the connection options
         $this->options['PDO::MYSQL_ATTR_INIT_COMMAND'] = "SET NAMES {$this->char_set}";
     } elseif (strpos($this->hostname, 'odbc') !== FALSE) {
         $this->_like_escape_str = " {escape '%s'} ";
         $this->_like_escape_chr = '!';
     } else {
         $this->_like_escape_str = " ESCAPE '%s' ";
         $this->_like_escape_chr = '!';
     }
     empty($this->database) or $this->hostname .= ';dbname=' . $this->database;
     $this->trans_enabled = FALSE;
     $this->_random_keyword = ' RND(' . time() . ')';
     // database specific random keyword
 }

 public function __construct($config = array())
 {
     $this->_is_ci_3 = (bool) ((int) CI_VERSION >= 3);
     $this->CI = get_instance();
     $this->CI->load->helper('email');
     $this->CI->load->helper('html');
     if (!is_array($config)) {
         $config = array();
     }
     if (isset($config['useragent'])) {
         $useragent = trim($config['useragent']);
         $mailer_engine = strtolower($useragent);
         if (strpos($mailer_engine, 'phpmailer') !== false) {
             $this->mailer_engine = 'phpmailer';
         } elseif (strpos($mailer_engine, 'codeigniter') !== false) {
             $this->mailer_engine = 'codeigniter';
         } else {
             unset($config['useragent']);
             // An invalid setting;
         }
     }
     if (isset($config['charset'])) {
         $charset = trim($config['charset']);
         if ($charset != '') {
             $this->charset = $charset;
             unset($config['charset']);
             // We don't need this anymore.
         }
     } else {
         $charset = trim(config_item('charset'));
         if ($charset != '') {
             $this->charset = $charset;
         }
     }
     $this->charset = strtoupper($this->charset);
     if ($this->mailer_engine == 'phpmailer') {
         //// If your system uses class autoloading feature,
         //// then the following require statement would not be needed.
         //if (!class_exists('PHPMailer', false)) {
         //    require_once COMMONPATH.'third_party/phpmailer/PHPMailerAutoload.php';
         //}
         ////
         $this->phpmailer = new PHPMailer();
         $this->phpmailer->PluginDir = COMMONPATH . 'third_party/phpmailer/';
         // Added by Ivan Tcholakov, 16-FEB-2015.
         $this->phpmailer->setLanguage($this->CI->lang->custom_code('phpmailer'));
         $this->_copy_property_to_phpmailer('charset');
     }
     if (count($config) > 0) {
         $this->initialize($config);
     } else {
         $this->_smtp_auth = ($this->smtp_user == '' and $this->smtp_pass == '') ? FALSE : TRUE;
         if ($this->mailer_engine == 'phpmailer') {
             $this->_copy_property_to_phpmailer('_smtp_auth');
         }
     }
     $this->_safe_mode = !is_php('5.4') && ini_get('safe_mode');
     log_message('info', 'Email Class Initialized (Engine: ' . $this->mailer_engine . ')');
 }

 /**
  * 启动
  */
 public static function start()
 {
     /*
      * ------------------------------------------------------
      *  设置时区
      * ------------------------------------------------------
      */
     date_default_timezone_set("Asia/Shanghai");
     /*
      * ------------------------------------------------------
      * 安全程序：关掉魔法引号，过滤全局变量
      * ------------------------------------------------------
      */
     if (!is_php('5.4')) {
         ini_set('magic_quotes_runtime', 0);
         if ((bool) ini_get('register_globals')) {
             $_protected = array('_SERVER', '_GET', '_POST', '_FILES', '_REQUEST', '_SESSION', '_ENV', '_COOKIE', 'GLOBALS', 'HTTP_RAW_POST_DATA', '_protected', '_registered');
             $_registered = ini_get('variables_order');
             foreach (array('E' => '_ENV', 'G' => '_GET', 'P' => '_POST', 'C' => '_COOKIE', 'S' => '_SERVER') as $key => $superglobal) {
                 if (strpos($_registered, $key) === FALSE) {
                     continue;
                 }
                 foreach (array_keys(${$superglobal}) as $var) {
                     if (isset($GLOBALS[$var]) && !in_array($var, $_protected, TRUE)) {
                         $GLOBALS[$var] = NULL;
                     }
                 }
             }
         }
     }
     /*
      * ------------------------------------------------------
      *  异常处理，错误处理等,记录错误日志
      * ------------------------------------------------------
      */
     register_shutdown_function("_finish_handle");
     set_exception_handler("_exception_handle");
     set_error_handler("_error_handle");
     /*
      * ------------------------------------------------------
      *  注册自动加载方法
      * ------------------------------------------------------
      */
     spl_autoload_register("Loader::autoload");
     Loader::setClassDir((array) AppHelper::Instance()->config("APP_AUTOLOAD_PATH"));
     Loader::setSuffix((array) AppHelper::Instance()->config("CLASS_FILE_SUFFIX"));
     /*
      * ------------------------------------------------------
      * ini 设置
      * ------------------------------------------------------
      */
     //默认字符编码为UTF-8
     ini_set('default_charset', 'UTF-8');
     //日志初始
     log_message(LOG_INFO, "初始处理完毕", \Utils\UtilFactory::getLogHandle());
     //运行核心程序
     log_message(LOG_INFO, "运行核心程序................");
     CommandHandler::run();
 }

 /**
  * Persistent database connection
  *
  * @return	object
  */
 public function db_pconnect()
 {
     // Persistent connection support was added in PHP 5.3.0
     if (!is_php('5.3')) {
         return $this->db_connect();
     }
     return $this->port != '' ? @mysqli_connect('p:' . $this->hostname, $this->username, $this->password, $this->database, $this->port) : @mysqli_connect('p:' . $this->hostname, $this->username, $this->password, $this->database);
 }

 public function index()
 {
     $php_min = '5.3';
     if (!is_php($php_min)) {
         $this->output->set_output('PHP ' . $php_min . ' is required for Lex parser.');
         return;
     }
     $this->template->build('lex_parser_layout_test');
 }

 public function index()
 {
     $videos = array('https://www.youtube.com/watch?v=NRhVcTTMlrM', 'http://vimeo.com/60743823', 'http://www.dailymotion.com/video/x9kdze', 'http://vbox7.com/play:25c4115f2d');
     $system_requirements_ok = is_php('5.3.2');
     if ($system_requirements_ok) {
         $this->load->library('multiplayer');
     }
     $this->template->set('videos', $videos)->set('system_requirements_ok', $system_requirements_ok)->build('multiplayer');
 }