/**

static public function table( $rows, $headertype = 'keys', $footertype = 'none', $empty_row_string = 'No Data' ) {

if( !@count( $rows ) ) {

if( $empty_row_string !== null ) {

$rows = [ [ $empty_row_string ] ];

}

else {

return '';

}

}

$header = null;

if( $headertype == 'keys' ) {

$header = array_keys( static::obj_arr( $rows[0] ) );

}

else if( $headertype == 'firstrow' ) {

$header = static::obj_arr( array_shift( $rows ) );

}

$col_widths = array();

static::calc_row_col_widths_and_align( $col_widths, $align, $header );

foreach( $rows as $row ) {

$row = static::obj_arr( $row );

static::calc_row_col_widths_and_align( $col_widths, $align, $row );

}

$buf = static::print_row( $col_widths, $align, $header );

$buf .= static::print_divider_row( $col_widths, $align );

foreach( $rows as $row ) {

$row = static::obj_arr( $row );

$buf .= static::print_row( $col_widths, $align, $row );

}

return $buf;

}

static protected function print_divider_row( $col_widths, $align) {

$buf = '|';

$idx = 0;

foreach( $col_widths as $width ) {

$rchar = $align[$idx] == 'right' ? ':' : '-';

$buf .= '-' . str_pad( '-', $width, '-' ) . $rchar . "|";

$idx ++;

}

$buf .= "\n";

return $buf;

}

static protected function print_row( $col_widths, $align, $row ) {

$buf = '|';

$idx = 0;

foreach( $row as $val ) {

$pad_type = $align[$idx] == 'right' ? STR_PAD_LEFT : STR_PAD_RIGHT;

$buf .= ' ' . str_pad( $val, $col_widths[$idx], ' ', $pad_type ) . " |";

$idx ++;

}

return $buf . "\n";

}

static protected function calc_row_col_widths_and_align( &$col_widths, &$align, $row ) {

$idx = 0;

foreach( $row as $val ) {

$len = strlen( $val );

if( $len > @$col_widths[$idx] ) {

$col_widths[$idx] = $len;

}

$align[$idx] = @$align[$idx] == 'right' ? 'right' : (is_numeric(trim($val)) ? 'right' : 'left');

$idx ++;

}

}

static protected function obj_arr( $t ) {

return is_object( $t ) ? get_object_vars( $t ) : $t;

}