framework_helpers.php

/framework/helpers/framework_helpers.php

http://personal-home-page-framework.googlecode.com/
PHP | 403 lines | 313 code | 39 blank | 51 comment | 14 complexity | 014386e42e90752ef921c594da7ed705 MD5 | raw file

<?php

function __autoload($class_name) {

    $class_name = camelcasify($class_name);

    

    if(stripos($class_name, "Controller") === false) {

        require(MODELS_PATH . "$class_name.php");

    }

    else {

        require(CONTROLLERS_PATH . "$class_name.php");

    }

}



function php_fw_exception_handler($e) {

  echo $e->getMessage();

  return true;

}



function php_fw_error_handler($errno, $errstr, $errfile, $errline, $errcontext) {

  if(IS_PRODUCTION) {

    render_500_error();

    return true;

  }

  

  $error_output = '<html>' .

    '<head>' .

      '<meta http-equiv="Content-type" content="text/html; charset=utf-8">' .

      '<title>Error Found</title>' .

      '<style type="text/css">' .

        'html {background-color:#B80000;}' .

        'body {background-color:white;width:800px;margin:20px auto;padding:10px;border:1px solid black;}' .

        'h1 {text-align:center;color:#B80000;text-shadow:2px 2px 0px #bbb;}' .

        'h1 strong {color:black;font-style:italic;}' .

        'dt {margin:10px 0px 5px 0px;padding:10px;border:1px black solid;background-color:#B80000;font-weight:bold;font-size:12pt;color:white;text-shadow:1px 1px 0px black;}' .

        'dl {margin:0px 20px 30px 20px;}' .

        'dl span {margin-right:20px;font-size:8pt;color:#aaa;}' .

        'dl strong {color:#B80000;}' .

      '</style>' .

    '</head>' .

    '<body>';

    

  $corrupted_file = file_get_contents($errfile);

  $lines = explode("\n", $corrupted_file);

  $start_line = ($errline - 4);

  $end_line = ($errline + 2);

  for($i = $start_line; $i <= $end_line; $i++) {

    if($i < 0) {

      continue;

    }

    if(isset($lines[$i])) {

      $current_line = trim($lines[$i]);

      if($i == $errline - 1) {

        $current_line = "<strong>$current_line</strong>";

      }

      $extracted_lines .= "<span>$i</span> " . $current_line . "<br />";

    }

  }

    

  $error_info = '<h1>Error with level <strong>%s</strong> found</h1>' .

    '<dl>' .

      '<dt>Error Message</dt>' .

      "<dl>$errstr</dl>" .

      '<dt>File where error occured</dt>' .

      "<dl>$errfile</dl>" .

      '<dt>Line where error occured</dt>' .

      "<dl>$errline</dl>" .

      '<dt>Extracted lines around error</dt>' .

      "<dl>$extracted_lines</dl>" .

      '<dt>Error context</dt>' .

      "<dl>" . var_export($errcontext, true) . "</dl>" .

      '<dt>Backtrace</dt>' .

      '<dl>' . nl2br(var_export(debug_backtrace(), true)) . '</dl>' .

    '</dl>';

  

  switch ($errno) {

    /* Fatal run-time errors.

     * These indicate errors that can not be recovered from, such as a memory allocation problem. 

     * Execution of the script is halted.

     */

    case E_ERROR:

    $error_level = "E_ERROR";

    break;

    

    /* Run-time warnings (non-fatal errors).

     * Execution of the script is not halted.

     */

    case E_WARNING:

    $error_level = "E_WARNING";

    break;

    

    /* Compile-time parse errors.

     * Parse errors should only be generated by the parser.

     */

    case E_PARSE:

    $error_level = "E_PARSE";

    break;

    

    /* Run-time notices.

     * Indicate that the script encountered something that could indicate an error, but could also happen in the normal course of running a script. 

     */

    case E_NOTICE:

    $error_level = "E_NOTICE";

    return true;

    break;

    

    /* Fatal errors that occur during PHP's initial startup.

     * This is like an E_ERROR, except it is generated by the core of PHP. 

     */

    case E_CORE_ERROR:

    $error_level = "E_CORE_ERROR";

    break;

    

    /* Warnings (non-fatal errors) that occur during PHP's initial startup.

     * This is like an E_WARNING, except it is generated by the core of PHP. 

     */

    case E_CORE_WARNING:

    $error_level = "E_CORE_WARNING";

    break;

    

    /* Fatal compile-time errors.

     * This is like an E_ERROR, except it is generated by the Zend Scripting Engine. 

     */

    case E_COMPILE_ERROR:

    $error_level = "E_COMPILE_ERROR";

    break;

    

    /* Compile-time warnings (non-fatal errors).

     * This is like an E_WARNING, except it is generated by the Zend Scripting Engine.

     */

    case E_COMPILE_WARNING:

    $error_level = "E_COMPILE_WARNING";

    break;

    

    /* User-generated error message.

     * This is like an E_ERROR, except it is generated in PHP code by

     * using the PHP function trigger_error(). 

     */

    case E_USER_ERROR:

    $error_level = "E_USER_ERROR";

    break;

    

    /* User-generated warning message.

     * This is like an E_WARNING, except it is generated in PHP code by

     * using the PHP function trigger_error(). 

     */

    case E_USER_WARNING:

    $error_level = "E_USER_WARNING";

    break;

    

    /* User-generated notice message.

     * This is like an E_NOTICE, except it is generated in PHP code by

     * using the PHP function trigger_error(). 

     */

    case E_USER_NOTICE:

    $error_level = "E_USER_NOTICE";

    break;

    

    /* Enable to have PHP suggest changes to your code which will ensure the

     * best interoperability and forward compatibility of your code.

     */

    case E_STRICT:

    $error_level = "E_STRICT";

    break;

    

    /* Catchable fatal error. It indicates that a probably dangerous 

     * error occured, but did not leave the Engine in an unstable state. 

     * If the error is not caught by a user defined handle (see also 

     * set_error_handler()), the application aborts as it was an E_ERROR.

     */

    case E_RECOVERABLE_ERROR:

    $error_level = "E_RECOVERABLE_ERROR";

    break;

    

    /* Run-time notices. Enable this to receive warnings about code that

     * will not work in future versions. 

     */

    case E_DEPRECATED:

    $error_level = "E_DEPRECATED";

    break;

    

    /* User-generated warning message. This is like an E_DEPRECATED, except it

     * is generated in PHP code by using the PHP function trigger_error(). 

     */

    case E_USER_DEPRECATED:

    $error_level = "E_USER_DEPRECATED";

    break;

  }

  

  $error_info = sprintf($error_info, $error_level);

  

  $error_output .= $error_info .

    '</body>' .

    '</html>';

    

  global $output;

  $output["html"] = $error_output;

  render_content();

  

  return true;

}



function render_content($content = "html") {

    global $output;

    echo $output[$content];

}



function output() {

    global $maped_routes;

    

    if(empty($maped_routes) or empty($maped_routes[camelcasify(get_current_model())])) {

        $model = camelcasify(get_current_model());

        $action = get_current_action();

        $class = $model . "Controller";

    }

    else {

        $current_route = $maped_routes[camelcasify(get_current_model())];

        $model = camelcasify($current_route["model"]);

        $action = $current_model["action"];

        $class = $model . 'Controller';

    }

    

    $vars = get_class_vars($class);

    

    if($vars === false) {

      throw new Exception("Controller: <strong>$class</strong> doesn't exist.");

      return false;

    }

    

    if(!is_script()) {

        if(property_exists($class, $action . "_layout")) {

            $layout = $vars[$action . "_layout"];

        }

        else {

            $layout = $vars["default_layout"];

        }

        

        if(property_exists($class, "custom_layout_path")) {

          $layout_path = $vars['custom_layout_path'];

        }

        else {

          $layout_path = LAYOUTS_PATH;

        }

        

        require($layout_path . "$layout.php");

    }

}



function include_plugin($name) {

    require(PLUGINS_PATH . $name . ".php");

}



function include_core_library($name) {

    require(CORE_PATH . $name . ".php");

}



function is_post() {

    if(isset($_POST) and !empty($_POST)) {

        $args = func_get_args();

        if(empty($args)) {

            return true;

        }

        else {

            $ok = true;

            foreach($args as $arg) {

                if(isset($_POST[$arg]) and !empty($_POST[$arg])) {

                    continue;

                }

                else {

                    return false;

                }

            }

        }

    }

    else {

        return false;

    }

}



function redirect_to_root() {

    header("Location: " . ROOT);

    exit();

}



function is_script() {

    return ($_GET["script"] == true) ? true : false;

}



function get_current_model() {

    if(!empty($_GET["model"]) and isset($_GET["model"])) {

        return camelcasify($_GET["model"]);

    }

    else {

        return camelcasify(DEFAULT_CONTROLLER);

    }

}



function get_current_action() {

    if(!empty($_GET["action"]) and isset($_GET["action"])) {

        return $_GET["action"];

    }

    else {

        return "index";

    }

}



function get_current_id() {

    if(!empty($_GET["id"]) and isset($_GET["id"])) {

        return $_GET["id"];

    }

    else {

        return null;

    }

}



function redirect_to($options = array()) {

    if(empty($options["model"]) or empty($options["action"])) {

        $location = $options;

    }

    else {

        $location = ROOT . underscorify($options["model"]) . '/' . ((empty($options["id"])) ? '' : $options["id"] . '/') .  $options["action"];

    }

    header("Location: $location");

    exit();

}



function render_404_error() {

    header("Location: " . PUBLIC_PATH . "404.php");

}



function render_500_error() {

  $called_uri = base64_encode($_SERVER['REQUEST_URI']);

  header("Location: " . PUBLIC_PATH . "500.php?called_uri=$called_uri");

}



function setup_get_parameters() {

    $url = $_SERVER['REQUEST_URI'];

    $url = parse_url($url);

    if(empty($url["query"])) {

        return true;

    }

    parse_str($url["query"], $parameters);

    foreach($parameters as $key => $value) {

        $_GET[$key] = $value;

    }

    return true;

}



function absolute_path($url) {

    $server_root = 'http://' . $_SERVER['SERVER_ADDR'];

    $page_root = $server_root . '/' . substr(ROOT, 1);

    $absolute_path = $page_root . $url;

    return $absolute_path;

}



function image_link($image) {

  return IMAGES_PATH . $image;

}



$exec_time = null;



function start_execution_time() {

  global $exec_time;

  $exec_time = microtime(true);

}



function end_execution_time() {

  global $exec_time;

  $exec_time = microtime(true) - $exec_time;

}



function get_execution_time($end = false) {

  global $exec_time;

  if($end) {

    end_execution_time();

  }

  return round($exec_time, 2);

}



function get_query_count($without_fields = false) {

  global $db;

  return $db->get_query_count($without_fields);

}



function auto_stripslashes($value) {

  if(AUTO_STRIPSLASHES and !is_numeric($value) and get_class($value) === false) {

    $value = stripslashes($value);

  }

  return $value;

}



function underscorify($str) {

  $arr = preg_split('/([A-Z][^A-Z]*)/', $str, -1, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE);

  $ret = implode("_", $arr);

  $ret = strtolower($ret);

  return $ret;

}



function camelcasify($str) {

  $arr = explode("_", $str);

  $arr = array_map("ucfirst", $arr);

  $ret = implode("", $arr);

  return $ret;

}

?>