private function escape_column_name($column_names){
        $columns = [];
        foreach( explode(',', $column_names) as $column_name ){
            // trim
            $column_name = trim($column_name);
            // Remove special chars
            $columns[] = preg_replace('/[`\'";\n\r\\\\\\0]/u', '', $column_name);
        }
        return implode(', ', $columns);
    }
private function escape_column_name($column_names){
        $columns = [];
        foreach( explode(',', $column_names) as $column_name ){
            // trim
            $column_name = trim($column_name);
            // Remove special chars
            $columns[] = preg_replace('/[`\'";\n\r\\\\\\0]/u', '', $column_name);
        }
        return implode(', ', $columns);
    }
private function escape_column_name ( $ column_names ) { $ columns = [ ] ; foreach ( explode ( ',' , $ column_names ) as $ column_name ) { // trim $ column_name = trim ( $ column_name ) ; // Remove special chars $ columns [ ] = preg_replace ( '/[`\'";\n\r\\\\\\0]/u' , '' , $ column_name ) ; } return implode ( ', ' , $ columns ) ; }
Wrap table name with backtick

@param string $column_names
@return string
Wrap table name with backtick