Monolog\Handler\BrowserConsoleHandler Class Reference

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)
	registerShutdownFunction ()
	Wrapper for register_shutdown_function to allow overriding. More...
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 Member Functions
static	writeOutput ($str)
	Wrapper for echo to allow overriding. More...
static	getResponseFormat ()
	Checks the format of the response. 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 218 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 226 of file BrowserConsoleHandler.php.

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

dump()

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

staticprivate

Definition at line 194 of file BrowserConsoleHandler.php.

References $key, $title, and array.

    {
        $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 133 of file BrowserConsoleHandler.php.

References $records, and array.

    {
        $script = array();
        foreach (self::$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 35 of file BrowserConsoleHandler.php.

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

getResponseFormat()

static Monolog\Handler\BrowserConsoleHandler::getResponseFormat ( )

staticprotected

Checks the format of the response.

If Content-Type is set to application/javascript or text/javascript -> js If Content-Type is set to text/html, or is unset -> html If Content-Type is anything else -> unknown

Returns

string One of 'js', 'html' or 'unknown'

Definition at line 113 of file BrowserConsoleHandler.php.

References $header.

    {
        // 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) {
                    return 'js';
                }
                if (stripos($header, 'text/html') === false) {
                    return 'unknown';
                }
                break;
            }
        }

        return 'html';
    }

handleCustomStyles()

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

staticprivate

Definition at line 174 of file BrowserConsoleHandler.php.

References $m, $style, and array.

    {
        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 155 of file BrowserConsoleHandler.php.

References $format, and array.

    {
        $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 213 of file BrowserConsoleHandler.php.

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

registerShutdownFunction()

Monolog\Handler\BrowserConsoleHandler::registerShutdownFunction ( )

protected

Wrapper for register_shutdown_function to allow overriding.

Definition at line 87 of file BrowserConsoleHandler.php.

References array.

Referenced by Monolog\Handler\BrowserConsoleHandler\write().

    {
        if (PHP_SAPI !== 'cli') {
            register_shutdown_function(array('Monolog\Handler\BrowserConsoleHandler', 'send'));
        }
    }

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reset()

static Monolog\Handler\BrowserConsoleHandler::reset ( )

static

Forget all logged records.

Definition at line 79 of file BrowserConsoleHandler.php.

References $records, and array.

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

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

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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 59 of file BrowserConsoleHandler.php.

References $format, and $records.

    {
        $format = self::getResponseFormat();
        if ($format === 'unknown') {
            return;
        }

        if (count(self::$records)) {
            if ($format === 'html') {
                self::writeOutput('<script>' . self::generateScript() . '</script>');
            } elseif ($format === 'js') {
                self::writeOutput(self::generateScript());
            }
            self::reset();
        }
    }

write()

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

protected

Definition at line 43 of file BrowserConsoleHandler.php.

References $records, and Monolog\Handler\BrowserConsoleHandler\registerShutdownFunction().

    {
        // Accumulate records
        self::$records[] = $record;

        // Register shutdown handler if not already done
        if (!self::$initialized) {
            self::$initialized = true;
            $this->registerShutdownFunction();
        }
    }

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writeOutput()

static Monolog\Handler\BrowserConsoleHandler::writeOutput (   $str )

staticprotected

Wrapper for echo to allow overriding.

Parameters

string

$str

Definition at line 99 of file BrowserConsoleHandler.php.

    {
        echo $str;
    }

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.

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

• libs/composer/vendor/monolog/monolog/src/Monolog/Handler/BrowserConsoleHandler.php