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authorAndrey Andreev <narf@bofh.bg>2012-04-27 10:54:40 +0200
committerAndrey Andreev <narf@bofh.bg>2012-04-27 10:54:40 +0200
commitce747c8a1e72a30f5369de7d56ba91b72f0e2eb3 (patch)
tree32433143610df1683131dba5cf4437ddadc306c6 /system/core/Common.php
parent870ad190f068ec16aad45622528ba6747c61c120 (diff)
parent61318a2c53c13a314f483fcbbfd64c6e01f5242c (diff)
Merge upstream branch
Diffstat (limited to 'system/core/Common.php')
-rw-r--r--system/core/Common.php340
1 files changed, 171 insertions, 169 deletions
diff --git a/system/core/Common.php b/system/core/Common.php
index f20acafd4..78aa6e874 100644
--- a/system/core/Common.php
+++ b/system/core/Common.php
@@ -25,8 +25,6 @@
* @filesource
*/
-// ------------------------------------------------------------------------
-
/**
* Common Functions
*
@@ -41,18 +39,17 @@
// ------------------------------------------------------------------------
-/**
-* Determines if the current version of PHP is greater then the supplied value
-*
-* Since there are a few places where we conditionally test for PHP > 5
-* we'll set a static variable.
-*
-* @access public
-* @param string
-* @return bool TRUE if the current version is $version or higher
-*/
if ( ! function_exists('is_php'))
{
+ /**
+ * Determines if the current version of PHP is greater then the supplied value
+ *
+ * Since there are a few places where we conditionally test for PHP > 5
+ * we'll set a static variable.
+ *
+ * @param string
+ * @return bool TRUE if the current version is $version or higher
+ */
function is_php($version = '5.0.0')
{
static $_is_php;
@@ -69,18 +66,18 @@ if ( ! function_exists('is_php'))
// ------------------------------------------------------------------------
-/**
- * Tests for file writability
- *
- * is_writable() returns TRUE on Windows servers when you really can't write to
- * the file, based on the read-only attribute. is_writable() is also unreliable
- * on Unix servers if safe_mode is on.
- *
- * @access public
- * @return void
- */
if ( ! function_exists('is_really_writable'))
{
+ /**
+ * Tests for file writability
+ *
+ * is_writable() returns TRUE on Windows servers when you really can't write to
+ * the file, based on the read-only attribute. is_writable() is also unreliable
+ * on Unix servers if safe_mode is on.
+ *
+ * @param string
+ * @return void
+ */
function is_really_writable($file)
{
// If we're on a Unix server with safe_mode off we call is_writable
@@ -117,21 +114,20 @@ if ( ! function_exists('is_really_writable'))
// ------------------------------------------------------------------------
-/**
-* Class registry
-*
-* This function acts as a singleton. If the requested class does not
-* exist it is instantiated and set to a static variable. If it has
-* previously been instantiated the variable is returned.
-*
-* @access public
-* @param string the class name being requested
-* @param string the directory where the class should be found
-* @param string the class name prefix
-* @return object
-*/
if ( ! function_exists('load_class'))
{
+ /**
+ * Class registry
+ *
+ * This function acts as a singleton. If the requested class does not
+ * exist it is instantiated and set to a static variable. If it has
+ * previously been instantiated the variable is returned.
+ *
+ * @param string the class name being requested
+ * @param string the directory where the class should be found
+ * @param string the class name prefix
+ * @return object
+ */
function &load_class($class, $directory = 'libraries', $prefix = 'CI_')
{
static $_classes = array();
@@ -191,15 +187,15 @@ if ( ! function_exists('load_class'))
// --------------------------------------------------------------------
-/**
-* Keeps track of which libraries have been loaded. This function is
-* called by the load_class() function above
-*
-* @access public
-* @return array
-*/
if ( ! function_exists('is_loaded'))
{
+ /**
+ * Keeps track of which libraries have been loaded. This function is
+ * called by the load_class() function above
+ *
+ * @param string
+ * @return array
+ */
function &is_loaded($class = '')
{
static $_is_loaded = array();
@@ -215,17 +211,17 @@ if ( ! function_exists('is_loaded'))
// ------------------------------------------------------------------------
-/**
-* Loads the main config.php file
-*
-* This function lets us grab the config file even if the Config class
-* hasn't been instantiated yet
-*
-* @access private
-* @return array
-*/
if ( ! function_exists('get_config'))
{
+ /**
+ * Loads the main config.php file
+ *
+ * This function lets us grab the config file even if the Config class
+ * hasn't been instantiated yet
+ *
+ * @param array
+ * @return array
+ */
function &get_config($replace = array())
{
static $_config;
@@ -275,14 +271,14 @@ if ( ! function_exists('get_config'))
// ------------------------------------------------------------------------
-/**
-* Returns the specified config item
-*
-* @access public
-* @return mixed
-*/
if ( ! function_exists('config_item'))
{
+ /**
+ * Returns the specified config item
+ *
+ * @param string
+ * @return mixed
+ */
function config_item($item)
{
static $_config_item = array();
@@ -304,20 +300,22 @@ if ( ! function_exists('config_item'))
// ------------------------------------------------------------------------
-/**
-* Error Handler
-*
-* This function lets us invoke the exception class and
-* display errors using the standard error template located
-* in application/errors/errors.php
-* This function will send the error page directly to the
-* browser and exit.
-*
-* @access public
-* @return void
-*/
if ( ! function_exists('show_error'))
{
+ /**
+ * Error Handler
+ *
+ * This function lets us invoke the exception class and
+ * display errors using the standard error template located
+ * in application/errors/errors.php
+ * This function will send the error page directly to the
+ * browser and exit.
+ *
+ * @param string
+ * @param int
+ * @param string
+ * @return void
+ */
function show_error($message, $status_code = 500, $heading = 'An Error Was Encountered')
{
$_error =& load_class('Exceptions', 'core');
@@ -328,18 +326,19 @@ if ( ! function_exists('show_error'))
// ------------------------------------------------------------------------
-/**
-* 404 Page Handler
-*
-* This function is similar to the show_error() function above
-* However, instead of the standard error template it displays
-* 404 errors.
-*
-* @access public
-* @return void
-*/
if ( ! function_exists('show_404'))
{
+ /**
+ * 404 Page Handler
+ *
+ * This function is similar to the show_error() function above
+ * However, instead of the standard error template it displays
+ * 404 errors.
+ *
+ * @param string
+ * @param bool
+ * @return void
+ */
function show_404($page = '', $log_error = TRUE)
{
$_error =& load_class('Exceptions', 'core');
@@ -350,17 +349,19 @@ if ( ! function_exists('show_404'))
// ------------------------------------------------------------------------
-/**
-* Error Logging Interface
-*
-* We use this as a simple mechanism to access the logging
-* class and send messages to be logged.
-*
-* @access public
-* @return void
-*/
if ( ! function_exists('log_message'))
{
+ /**
+ * Error Logging Interface
+ *
+ * We use this as a simple mechanism to access the logging
+ * class and send messages to be logged.
+ *
+ * @param string
+ * @param string
+ * @param bool
+ * @return void
+ */
function log_message($level = 'error', $message, $php_error = FALSE)
{
static $_log;
@@ -377,60 +378,59 @@ if ( ! function_exists('log_message'))
// ------------------------------------------------------------------------
-/**
- * Set HTTP Status Header
- *
- * @access public
- * @param int the status code
- * @param string
- * @return void
- */
if ( ! function_exists('set_status_header'))
{
+ /**
+ * Set HTTP Status Header
+ *
+ * @param int the status code
+ * @param string
+ * @return void
+ */
function set_status_header($code = 200, $text = '')
{
$stati = array(
- 200 => 'OK',
- 201 => 'Created',
- 202 => 'Accepted',
- 203 => 'Non-Authoritative Information',
- 204 => 'No Content',
- 205 => 'Reset Content',
- 206 => 'Partial Content',
-
- 300 => 'Multiple Choices',
- 301 => 'Moved Permanently',
- 302 => 'Found',
- 304 => 'Not Modified',
- 305 => 'Use Proxy',
- 307 => 'Temporary Redirect',
-
- 400 => 'Bad Request',
- 401 => 'Unauthorized',
- 403 => 'Forbidden',
- 404 => 'Not Found',
- 405 => 'Method Not Allowed',
- 406 => 'Not Acceptable',
- 407 => 'Proxy Authentication Required',
- 408 => 'Request Timeout',
- 409 => 'Conflict',
- 410 => 'Gone',
- 411 => 'Length Required',
- 412 => 'Precondition Failed',
- 413 => 'Request Entity Too Large',
- 414 => 'Request-URI Too Long',
- 415 => 'Unsupported Media Type',
- 416 => 'Requested Range Not Satisfiable',
- 417 => 'Expectation Failed',
- 422 => 'Unprocessable Entity',
-
- 500 => 'Internal Server Error',
- 501 => 'Not Implemented',
- 502 => 'Bad Gateway',
- 503 => 'Service Unavailable',
- 504 => 'Gateway Timeout',
- 505 => 'HTTP Version Not Supported'
- );
+ 200 => 'OK',
+ 201 => 'Created',
+ 202 => 'Accepted',
+ 203 => 'Non-Authoritative Information',
+ 204 => 'No Content',
+ 205 => 'Reset Content',
+ 206 => 'Partial Content',
+
+ 300 => 'Multiple Choices',
+ 301 => 'Moved Permanently',
+ 302 => 'Found',
+ 304 => 'Not Modified',
+ 305 => 'Use Proxy',
+ 307 => 'Temporary Redirect',
+
+ 400 => 'Bad Request',
+ 401 => 'Unauthorized',
+ 403 => 'Forbidden',
+ 404 => 'Not Found',
+ 405 => 'Method Not Allowed',
+ 406 => 'Not Acceptable',
+ 407 => 'Proxy Authentication Required',
+ 408 => 'Request Timeout',
+ 409 => 'Conflict',
+ 410 => 'Gone',
+ 411 => 'Length Required',
+ 412 => 'Precondition Failed',
+ 413 => 'Request Entity Too Large',
+ 414 => 'Request-URI Too Long',
+ 415 => 'Unsupported Media Type',
+ 416 => 'Requested Range Not Satisfiable',
+ 417 => 'Expectation Failed',
+ 422 => 'Unprocessable Entity',
+
+ 500 => 'Internal Server Error',
+ 501 => 'Not Implemented',
+ 502 => 'Bad Gateway',
+ 503 => 'Service Unavailable',
+ 504 => 'Gateway Timeout',
+ 505 => 'HTTP Version Not Supported'
+ );
if ($code == '' OR ! is_numeric($code))
{
@@ -466,22 +466,25 @@ if ( ! function_exists('set_status_header'))
// --------------------------------------------------------------------
-/**
-* Exception Handler
-*
-* This is the custom exception handler that is declaired at the top
-* of Codeigniter.php. The main reason we use this is to permit
-* PHP errors to be logged in our own log files since the user may
-* not have access to server logs. Since this function
-* effectively intercepts PHP errors, however, we also need
-* to display errors based on the current error_reporting level.
-* We do that with the use of a PHP error template.
-*
-* @access private
-* @return void
-*/
if ( ! function_exists('_exception_handler'))
{
+ /**
+ * Exception Handler
+ *
+ * This is the custom exception handler that is declaired at the top
+ * of Codeigniter.php. The main reason we use this is to permit
+ * PHP errors to be logged in our own log files since the user may
+ * not have access to server logs. Since this function
+ * effectively intercepts PHP errors, however, we also need
+ * to display errors based on the current error_reporting level.
+ * We do that with the use of a PHP error template.
+ *
+ * @param int
+ * @param string
+ * @param string
+ * @param int
+ * @return void
+ */
function _exception_handler($severity, $message, $filepath, $line)
{
// We don't bother with "strict" notices since they tend to fill up
@@ -515,18 +518,18 @@ if ( ! function_exists('_exception_handler'))
// --------------------------------------------------------------------
-/**
- * Remove Invisible Characters
- *
- * This prevents sandwiching null characters
- * between ascii characters, like Java\0script.
- *
- * @access public
- * @param string
- * @return string
- */
if ( ! function_exists('remove_invisible_characters'))
{
+ /**
+ * Remove Invisible Characters
+ *
+ * This prevents sandwiching null characters
+ * between ascii characters, like Java\0script.
+ *
+ * @param string
+ * @param bool
+ * @return string
+ */
function remove_invisible_characters($str, $url_encoded = TRUE)
{
$non_displayables = array();
@@ -553,15 +556,14 @@ if ( ! function_exists('remove_invisible_characters'))
// ------------------------------------------------------------------------
-/**
-* Returns HTML escaped variable
-*
-* @access public
-* @param mixed
-* @return mixed
-*/
if ( ! function_exists('html_escape'))
{
+ /**
+ * Returns HTML escaped variable
+ *
+ * @param mixed
+ * @return mixed
+ */
function html_escape($var)
{
return is_array($var)
@@ -571,4 +573,4 @@ if ( ! function_exists('html_escape'))
}
/* End of file Common.php */
-/* Location: ./system/core/Common.php */
+/* Location: ./system/core/Common.php */ \ No newline at end of file