src/debug/DebugHelper.php
public static function errorLevelToStr($level) {
        if (!is_int($level)) throw new IllegalTypeException('Illegal type of parameter $level: '.gettype($level));

        $levels = [
            E_ERROR             => 'E_ERROR',                   //     1
            E_WARNING           => 'E_WARNING',                 //     2
            E_PARSE             => 'E_PARSE',                   //     4
            E_NOTICE            => 'E_NOTICE',                  //     8
            E_CORE_ERROR        => 'E_CORE_ERROR',              //    16
            E_CORE_WARNING      => 'E_CORE_WARNING',            //    32
            E_COMPILE_ERROR     => 'E_COMPILE_ERROR',           //    64
            E_COMPILE_WARNING   => 'E_COMPILE_WARNING',         //   128
            E_USER_ERROR        => 'E_USER_ERROR',              //   256
            E_USER_WARNING      => 'E_USER_WARNING',            //   512
            E_USER_NOTICE       => 'E_USER_NOTICE',             //  1024
            E_STRICT            => 'E_STRICT',                  //  2048
            E_RECOVERABLE_ERROR => 'E_RECOVERABLE_ERROR',       //  4096
            E_DEPRECATED        => 'E_DEPRECATED',              //  8192
            E_USER_DEPRECATED   => 'E_USER_DEPRECATED',         // 16384
        ];

        if      (!$level)                                                       $levels = ['0'];                        //     0
        else if (($level &  E_ALL)                  ==  E_ALL)                  $levels = ['E_ALL'];                    // 32767
        else if (($level & (E_ALL & ~E_DEPRECATED)) == (E_ALL & ~E_DEPRECATED)) $levels = ['E_ALL & ~E_DEPRECATED'];    // 24575
        else {
            foreach ($levels as $key => $value) {
                if ($level & $key) continue;
                unset($levels[$key]);
            }
        }
        return join('|', $levels);
    }
public static function errorLevelToStr($level) {
        if (!is_int($level)) throw new IllegalTypeException('Illegal type of parameter $level: '.gettype($level));

        $levels = [
            E_ERROR             => 'E_ERROR',                   //     1
            E_WARNING           => 'E_WARNING',                 //     2
            E_PARSE             => 'E_PARSE',                   //     4
            E_NOTICE            => 'E_NOTICE',                  //     8
            E_CORE_ERROR        => 'E_CORE_ERROR',              //    16
            E_CORE_WARNING      => 'E_CORE_WARNING',            //    32
            E_COMPILE_ERROR     => 'E_COMPILE_ERROR',           //    64
            E_COMPILE_WARNING   => 'E_COMPILE_WARNING',         //   128
            E_USER_ERROR        => 'E_USER_ERROR',              //   256
            E_USER_WARNING      => 'E_USER_WARNING',            //   512
            E_USER_NOTICE       => 'E_USER_NOTICE',             //  1024
            E_STRICT            => 'E_STRICT',                  //  2048
            E_RECOVERABLE_ERROR => 'E_RECOVERABLE_ERROR',       //  4096
            E_DEPRECATED        => 'E_DEPRECATED',              //  8192
            E_USER_DEPRECATED   => 'E_USER_DEPRECATED',         // 16384
        ];

        if      (!$level)                                                       $levels = ['0'];                        //     0
        else if (($level &  E_ALL)                  ==  E_ALL)                  $levels = ['E_ALL'];                    // 32767
        else if (($level & (E_ALL & ~E_DEPRECATED)) == (E_ALL & ~E_DEPRECATED)) $levels = ['E_ALL & ~E_DEPRECATED'];    // 24575
        else {
            foreach ($levels as $key => $value) {
                if ($level & $key) continue;
                unset($levels[$key]);
            }
        }
        return join('|', $levels);
    }
public static function errorLevelToStr ( $ level ) { if ( ! is_int ( $ level ) ) throw new IllegalTypeException ( 'Illegal type of parameter $level: ' . gettype ( $ level ) ) ; $ levels = [ E_ERROR => 'E_ERROR' , //     1 E_WARNING => 'E_WARNING' , //     2 E_PARSE => 'E_PARSE' , //     4 E_NOTICE => 'E_NOTICE' , //     8 E_CORE_ERROR => 'E_CORE_ERROR' , //    16 E_CORE_WARNING => 'E_CORE_WARNING' , //    32 E_COMPILE_ERROR => 'E_COMPILE_ERROR' , //    64 E_COMPILE_WARNING => 'E_COMPILE_WARNING' , //   128 E_USER_ERROR => 'E_USER_ERROR' , //   256 E_USER_WARNING => 'E_USER_WARNING' , //   512 E_USER_NOTICE => 'E_USER_NOTICE' , //  1024 E_STRICT => 'E_STRICT' , //  2048 E_RECOVERABLE_ERROR => 'E_RECOVERABLE_ERROR' , //  4096 E_DEPRECATED => 'E_DEPRECATED' , //  8192 E_USER_DEPRECATED => 'E_USER_DEPRECATED' , // 16384 ] ; if ( ! $ level ) $ levels = [ '0' ] ; //     0 else if ( ( $ level & E_ALL ) == E_ALL ) $ levels = [ 'E_ALL' ] ; // 32767 else if ( ( $ level & ( E_ALL & ~ E_DEPRECATED ) ) == ( E_ALL & ~ E_DEPRECATED ) ) $ levels = [ 'E_ALL & ~E_DEPRECATED' ] ; // 24575 else { foreach ( $ levels as $ key => $ value ) { if ( $ level & $ key ) continue ; unset ( $ levels [ $ key ] ) ; } } return join ( '|' , $ levels ) ; }
Return a human-readable form of the specified error reporting level.

@param  int $level - error reporting level

@return string
Return a human - readable form of the specified error reporting level .