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<?php
namespace Dhtmlx\Connector\Tools;
/*! Controls error and debug logging.
Class designed to be used as static object.
**/
class LogMaster{
private static $_log=false;//!< logging mode flag
private static $_output=false;//!< output error infor to client flag
private static $session="";//!< all messages generated for current request
/*! convert array to string representation ( it is a bit more readable than var_dump )
@param data
data object
@param pref
prefix string, used for formating, optional
@return
string with array description
*/
private static function log_details($data,$pref=""){
if (is_array($data)){
$str=array("");
foreach($data as $k=>$v)
array_push($str,$pref.$k." => ".LogMaster::log_details($v,$pref."\t"));
return implode("\n",$str);
}
return $data;
}
/*! put record in log
@param str
string with log info, optional
@param data
data object, which will be added to log, optional
*/
public static function log($str="",$data=""){
if (LogMaster::$_log){
$message = $str.LogMaster::log_details($data)."\n\n";
LogMaster::$session.=$message;
error_log($message,3,LogMaster::$_log);
}
}
/*! get logs for current request
@return
string, which contains all log messages generated for current request
*/
public static function get_session_log(){
return LogMaster::$session;
}
/*! error handler, put normal php errors in log file
@param errn
error number
@param errstr
error description
@param file
error file
@param line
error line
@param context
error cntext
*/
public static function error_log($errn,$errstr,$file,$line,$context){
LogMaster::log($errstr." at ".$file." line ".$line);
}
/*! exception handler, used as default reaction on any error - show execution log and stop processing
@param exception
instance of Exception
*/
public static function exception_log($exception){
LogMaster::log("!!!Uncaught Exception\nCode: " . $exception->getCode() . "\nMessage: " . $exception->getMessage());
if (LogMaster::$_output){
echo "<pre><xmp>\n";
echo LogMaster::get_session_log();
echo "\n</xmp></pre>";
}
die();
}
/*! enable logging
@param name
path to the log file, if boolean false provided as value - logging will be disabled
@param output
flag of client side output, if enabled - session log will be sent to client side in case of an error.
*/
public static function enable_log($name,$output=false){
LogMaster::$_log=$name;
LogMaster::$_output=$output;
if ($name){
set_error_handler(array("Dhtmlx\\Connector\\Tools\\LogMaster","error_log"),E_ALL);
set_exception_handler(array("Dhtmlx\\Connector\\Tools\\LogMaster","exception_log"));
LogMaster::log("\n\n====================================\nLog started, ".date("d/m/Y h:i:s")."\n====================================");
}
}
}
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