Handler sending logs to browser's javascript console with no browser extension required. More...

Inheritance diagram for Monolog\Handler\BrowserConsoleHandler:

Collaboration diagram for Monolog\Handler\BrowserConsoleHandler:

Static Public Member Functions
static	send ()
	Convert records to javascript console commands and send it to the browser. More...

static	reset ()
	Forget all logged records. More...

Protected Member Functions
	getDefaultFormatter ()

	write (array $record)

Protected Member Functions inherited from Monolog\Handler\AbstractProcessingHandler
	write (array $record)
	Writes the record down to the log of the implementing handler. More...

	processRecord (array $record)
	Processes a record. More...

Protected Member Functions inherited from Monolog\Handler\AbstractHandler
	getDefaultFormatter ()
	Gets the default formatter. More...

Static Protected Attributes
static	$initialized = false

static	$records = array()

Static Private Member Functions
static	generateScript ()

static	handleStyles ($formatted)

static	handleCustomStyles ($style, $string)

static	dump ($title, array $dict)

static	quote ($arg)

static	call ()

static	call_array ($method, array $args)

Additional Inherited Members

Public Member Functions inherited from Monolog\Handler\AbstractProcessingHandler

handle (array $record)

{Handles a record.All records may be passed to this method, and the handler should discard those that it does not want to handle.The return value of this function controls the bubbling process of the handler stack. Unless the bubbling is interrupted (by returning true), the Logger class will keep on calling further handlers in the stack with a given log record.

Parameters

array $record The record to handle

Returns: Boolean true means that this handler handled the record, and that bubbling is not permitted. false means the record was either not processed or that this handler allows bubbling.

} More...

Public Member Functions inherited from Monolog\Handler\AbstractHandler

__construct ($level=Logger::DEBUG, $bubble=true)

isHandling (array $record)

{Checks whether the given record will be handled by this handler.This is mostly done for performance reasons, to avoid calling processors for nothing.Handlers should still check the record levels within handle(), returning false in isHandling() is no guarantee that handle() will not be called, and isHandling() might not be called for a given record.

Parameters

array $record Partial log record containing only a level key

Returns: Boolean

} More...

handleBatch (array $records)

{Handles a set of records at once.

Parameters

array $records The records to handle (an array of record arrays)

} More...

close ()

Closes the handler. More...

pushProcessor ($callback)

{Adds a processor in the stack.

Parameters

callable $callback

Returns: self

} More...

popProcessor ()

{Removes the processor on top of the stack and returns it.

Returns: callable

} More...

setFormatter (FormatterInterface $formatter)

{Sets the formatter.

Parameters

FormatterInterface $formatter

Returns: self

} More...

getFormatter ()

{Gets the formatter.

Returns: FormatterInterface

} More...

setLevel ($level)

Sets minimum logging level at which this handler will be triggered. More...

getLevel ()

Gets minimum logging level at which this handler will be triggered. More...

setBubble ($bubble)

Sets the bubbling behavior. More...

getBubble ()

Gets the bubbling behavior. More...

__destruct ()

Protected Attributes inherited from Monolog\Handler\AbstractHandler

$level = Logger::DEBUG

$bubble = true

$formatter

$processors = array()

Detailed Description

Handler sending logs to browser's javascript console with no browser extension required.

Author: Olivier Poitrey rs@da.nosp@m.ilym.nosp@m.otion.nosp@m..com

Definition at line 21 of file BrowserConsoleHandler.php.

Member Function Documentation

◆ call()

static Monolog\Handler\BrowserConsoleHandler::call ( )

staticprivate

Definition at line 180 of file BrowserConsoleHandler.php.

     {
         $args = func_get_args();
         $method = array_shift($args);
 
         return self::call_array($method, $args);
     }

◆ call_array()

static Monolog\Handler\BrowserConsoleHandler::call_array	(		$method,
		array	$args
	)

staticprivate

Definition at line 188 of file BrowserConsoleHandler.php.

     {
         return 'c.' . $method . '(' . implode(', ', $args) . ');';
     }

◆ dump()

static Monolog\Handler\BrowserConsoleHandler::dump	(		$title,
		array	$dict
	)

staticprivate

Definition at line 156 of file BrowserConsoleHandler.php.

     {
         $script = array();
         $dict = array_filter($dict);
         if (empty($dict)) {
             return $script;
         }
         $script[] = self::call('log', self::quote('%c%s'), self::quote('font-weight: bold'), self::quote($title));
         foreach ($dict as $key => $value) {
             $value = json_encode($value);
             if (empty($value)) {
                 $value = self::quote('');
             }
             $script[] = self::call('log', self::quote('%s: %o'), self::quote($key), $value);
         }
 
         return $script;
     }

◆ generateScript()

static Monolog\Handler\BrowserConsoleHandler::generateScript ( )

staticprivate

Definition at line 95 of file BrowserConsoleHandler.php.

References $records.

     {
         $script = array();
         foreach (self::$records as $record) {
             $context = self::dump('Context', $record['context']);
             $extra = self::dump('Extra', $record['extra']);
 
             if (empty($context) && empty($extra)) {
                 $script[] = self::call_array('log', self::handleStyles($record['formatted']));
             } else {
                 $script = array_merge($script,
                     array(self::call_array('groupCollapsed', self::handleStyles($record['formatted']))),
                     $context,
                     $extra,
                     array(self::call('groupEnd'))
                 );
             }
         }
 
         return "(function (c) {if (c && c.groupCollapsed) {\n" . implode("\n", $script) . "\n}})(console);";
     }

◆ getDefaultFormatter()

Monolog\Handler\BrowserConsoleHandler::getDefaultFormatter ( )

protected

Formatted output may contain some formatting markers to be transferred to console.log using the c format.

Example of formatted string:

You can do [[blue text]]{color: blue} or [[green background]]{background-color: green; color: white}

Definition at line 36 of file BrowserConsoleHandler.php.

     {
         return new LineFormatter('[[%channel%]]{macro: autolabel} [[%level_name%]]{font-weight: bold} %message%');
     }

◆ handleCustomStyles()

static Monolog\Handler\BrowserConsoleHandler::handleCustomStyles	(	$style,
		$string
	)

staticprivate

Definition at line 136 of file BrowserConsoleHandler.php.

References $style.

     {
         static $colors = array('blue', 'green', 'red', 'magenta', 'orange', 'black', 'grey');
         static $labels = array();
 
         return preg_replace_callback('/macro\s*:(.*?)(?:;|$)/', function ($m) use ($string, &$colors, &$labels) {
             if (trim($m[1]) === 'autolabel') {
                 // Format the string as a label with consistent auto assigned background color
                 if (!isset($labels[$string])) {
                     $labels[$string] = $colors[count($labels) % count($colors)];
                 }
                 $color = $labels[$string];
 
                 return "background-color: $color; color: white; border-radius: 3px; padding: 0 2px 0 2px";
             }
 
             return $m[1];
         }, $style);
     }

◆ handleStyles()

static Monolog\Handler\BrowserConsoleHandler::handleStyles ( $formatted )

staticprivate

Definition at line 117 of file BrowserConsoleHandler.php.

     {
         $args = array(self::quote('font-weight: normal'));
         $format = '%c' . $formatted;
         preg_match_all('/\[\[(.*?)\]\]\{([^}]*)\}/s', $format, $matches, PREG_OFFSET_CAPTURE | PREG_SET_ORDER);
 
         foreach (array_reverse($matches) as $match) {
             $args[] = self::quote(self::handleCustomStyles($match[2][0], $match[1][0]));
             $args[] = '"font-weight: normal"';
 
             $pos = $match[0][1];
             $format = substr($format, 0, $pos) . '%c' . $match[1][0] . '%c' . substr($format, $pos + strlen($match[0][0]));
         }
 
         array_unshift($args, self::quote($format));
 
         return $args;
     }

◆ quote()

static Monolog\Handler\BrowserConsoleHandler::quote ( $arg )

staticprivate

Definition at line 175 of file BrowserConsoleHandler.php.

     {
         return '"' . addcslashes($arg, "\"\n\\") . '"';
     }

◆ reset()

static Monolog\Handler\BrowserConsoleHandler::reset ( )

static

Forget all logged records.

Definition at line 90 of file BrowserConsoleHandler.php.

References $records.

Referenced by Monolog\Handler\BrowserConsoleHandlerTest\setUp().

     {
         self::$records = array();
     }

Here is the caller graph for this function:

◆ send()

static Monolog\Handler\BrowserConsoleHandler::send ( )

static

Convert records to javascript console commands and send it to the browser.

This method is automatically called on PHP shutdown if output is HTML or Javascript.

Definition at line 60 of file BrowserConsoleHandler.php.

References $header, and $records.

     {
         $htmlTags = true;
         // Check content type
         foreach (headers_list() as $header) {
             if (stripos($header, 'content-type:') === 0) {
                 // This handler only works with HTML and javascript outputs
                 // text/javascript is obsolete in favour of application/javascript, but still used
                 if (stripos($header, 'application/javascript') !== false || stripos($header, 'text/javascript') !== false) {
                     $htmlTags = false;
                 } elseif (stripos($header, 'text/html') === false) {
                     return;
                 }
                 break;
             }
         }
 
         if (count(self::$records)) {
             if ($htmlTags) {
                 echo '<script>' , self::generateScript() , '</script>';
             } else {
                 echo self::generateScript();
             }
             self::reset();
         }
     }

◆ write()

Monolog\Handler\BrowserConsoleHandler::write ( array $record )

protected

Definition at line 44 of file BrowserConsoleHandler.php.

References $records.

     {
         // Accumulate records
         self::$records[] = $record;
 
         // Register shutdown handler if not already done
         if (PHP_SAPI !== 'cli' && !self::$initialized) {
             self::$initialized = true;
             register_shutdown_function(array('Monolog\Handler\BrowserConsoleHandler', 'send'));
         }
     }

Field Documentation

◆ $initialized

Monolog\Handler\BrowserConsoleHandler::$initialized = false

staticprotected

Definition at line 23 of file BrowserConsoleHandler.php.

◆ $records

Monolog\Handler\BrowserConsoleHandler::$records = array()

staticprotected

Definition at line 24 of file BrowserConsoleHandler.php.

The documentation for this class was generated from the following file:

Services/Logging/lib/vendor/monolog/monolog/src/Monolog/Handler/BrowserConsoleHandler.php

Static Public Member Functions

Protected Member Functions

Static Protected Attributes

Static Private Member Functions

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ call()

◆ call_array()

◆ dump()

◆ generateScript()

◆ getDefaultFormatter()

◆ handleCustomStyles()

◆ handleStyles()

◆ quote()

◆ reset()

◆ send()

◆ write()

Field Documentation

◆ $initialized

◆ $records