log into firebug/firephp extensions

firephp.php

<?php

/**
* log into firebug/firephp extensions
*
* @see http://www.firephp.org
* @example
 
    firephp($var);
    firephp($var, LOG_ERR);
    firephp($var, 'label');
    firephp($var, 'Label', LOG_INFO);
    firephp($var, 'Label', LOG_INFO, __LINE__, __FILE__);

* @param string $label
* @param mixed $var variable to debug/dump into firebug console
* @param int $level const used by syslog() function (see php docs)
* @param int $line line when event has been fired
* @param str $file filepath
* @return void
*/
function firephp( $var, $label='dump', $level=8, $line='0', $file='unknow')
{
    static $index = 0;
    $index++;
    // protocol limit
    if ($index > 99999) return false;

    if($index===1) {
        header('X-Wf-Protocol-1: http://meta.wildfirehq.org/'
                .'Protocol/JsonStream/0.2');
        header('X-Wf-1-Plugin-1: http://meta.firephp.org/'
               .'Wildfire/Plugin/FirePHP/Library-FirePHPCore/0.3');
        header('X-Wf-1-Structure-1: http://meta.firephp.org/Wildfire/'
                .'Structure/FirePHP/FirebugConsole/0.1');
        //header('X-Wf-1-Structure-2: http://meta.firephp.org/'
        // .'Wildfire/Structure/FirePHP/Dump/0.1');
        $running = true;
    }
    $meta = array();
    $levels = array('ERROR','WARN','ERROR','ERROR',
                    'WARN','INFO','INFO','LOG');
    if( is_int($label) ) {
        $meta['Type'] = $label;
        $label = 'dump';
    }
    if(isset($levels[(int)$level])) $meta['Type'] = $levels[(int)$level];
    else $meta['Type'] = 'ERROR';
    
    $meta['Line'] = $line;
    $meta['File'] = $file;
    $meta['Label'] = $label;
 
    if( is_a( $var, 'Exception' ) ) {
        $meta['Label'] = get_class($var);
        $meta['Type'] = 'ERROR';
        $meta['Line'] = $var->getLine();
        $meta['File'] = $var->getFile();
        $var = $var->getMessage();
    } elseif( is_object($var) ) {
        $var = array( get_class($var), get_object_vars($var) );
    } elseif( is_string($var) ) {
        $var = trim( $var );
    }
    $msg = '['.json_encode($meta).','.json_encode($var).']';
    $parts = explode("\n",chunk_split($msg, 5000, "\n"));
 
    for( $i=0 ; $i<count($parts) ; $i++) {
        $part = $parts[$i];
        if ($part) {
            if(count($parts)>2) {
                // Message needs to be split into multiple parts
                header('X-Wf-1-1-1-'.$index.': '
                       .(($i==0)?strlen($msg):'')
                       . '|' . $part . '|'
                       . (($i<count($parts)-2)?'\\':''));
            } else {
                header('X-Wf-1-1-1-'.$index.': '
                       .strlen($part) . '|' . $part . '|');
            }
            $index++;
        }
    }
    
    header('X-Wf-1-Index: '.$index);
    return true;
}
//- firephp()