src/Services/PDOs/Builders/Builder.php
private function hasExactlyOneColumn()
    {
        if (count($this->columns) != 1 || strpos($this->columns[0], '*') !== false) {
            return false;
        }

        if (strpos($this->columns[0], ',') === false) {
            return true;
        }

        // The column expression includes a comma. Is this a separator for columns or for function arguments?
        $column = $this->columns[0];
        $n = strlen($column);
        $braces = 0;
        for ($i = 0; $i < $n; $i++) {
            $ch = $column[$i];
            if ($braces == 0 && $ch == ',') {
                return false; // comma separator found!
            }
            else if ($ch == '(') {
                $braces++;
            }
            else if ($ch == ')') {
                $braces--;
            }
        }

        return true;
    }
private function hasExactlyOneColumn()
    {
        if (count($this->columns) != 1 || strpos($this->columns[0], '*') !== false) {
            return false;
        }

        if (strpos($this->columns[0], ',') === false) {
            return true;
        }

        // The column expression includes a comma. Is this a separator for columns or for function arguments?
        $column = $this->columns[0];
        $n = strlen($column);
        $braces = 0;
        for ($i = 0; $i < $n; $i++) {
            $ch = $column[$i];
            if ($braces == 0 && $ch == ',') {
                return false; // comma separator found!
            }
            else if ($ch == '(') {
                $braces++;
            }
            else if ($ch == ')') {
                $braces--;
            }
        }

        return true;
    }
private function hasExactlyOneColumn ( ) { if ( count ( $ this -> columns ) != 1 || strpos ( $ this -> columns [ 0 ] , '*' ) !== false ) { return false ; } if ( strpos ( $ this -> columns [ 0 ] , ',' ) === false ) { return true ; } // The column expression includes a comma. Is this a separator for columns or for function arguments? $ column = $ this -> columns [ 0 ] ; $ n = strlen ( $ column ) ; $ braces = 0 ; for ( $ i = 0 ; $ i < $ n ; $ i ++ ) { $ ch = $ column [ $ i ] ; if ( $ braces == 0 && $ ch == ',' ) { return false ; // comma separator found! } else if ( $ ch == '(' ) { $ braces ++ ; } else if ( $ ch == ')' ) { $ braces -- ; } } return true ; }
Determine if the statement has exactly one column.

@return bool
Determine if the statement has exactly one column .