This is much better than trying to beef-up any "single lesser object" on-the-fly, and it's way easier to do). Your existing partition (Windows) is on the left, Ubuntu is on the right. That's the standard order when shrinking one partition to create another for dual-booting. Installing Ubuntu with Windows installed on a partition. And we still need the class def all extra data. We should have just instantiated a SuperDuperPoint object to begin with. and just like above, this only works on a per-instance basis. C. Do it the right way using OOP - and just extend the. Echo p3d- getX / 25 echo p3d- getY / 35 echo p3d- getZ / 45? Once the new class definition is written, you can make as many Point3D objects as you want. Each of them will have more data and functions already built-in. And some of them too deeply rooted in the minds of PHP users. For instance, on this very page there are (although invisible to most visitors) more than 80 deleted answers - all removed by the community due to bad quality or promoting bad and. Still there is an issue with SQL syntax keywords (such as AND, DESC and such) but white-listing seems the only approach in this case. Although there is a general agreement on the best practices regarding SQL injection protection, there are still many bad practices as. So, to make long story short: it's a placeholder, not prepared statement can be considered as a silver bullet. So, a general recommendation may be phrased as. As long as you are adding dynamic parts to the query using placeholders (and these placeholders properly processed. But sometimes we have to make our query even more dynamic, adding operators or identifiers as well. So, we will need different protection techniques. In general, such a protection approach is based on whitelisting. In this case every dynamic parameter should be hardcoded in your. I think that all this because of one very old superstition, supported by such authorities like. OWASP or PHP manual, which proclaims equality between whatever "escaping" and protection from SQL injections. Despite of what PHP manual said for ages, _escape_string by no means makes data. Or there is a slightly better answer that suggests just another method of string formatting and even boasts it as ultimate panacea. While of course it is not. This method is no better than regular string formatting yet it keeps all its drawbacks: it is. However, there is another way to secure identifiers - escaping. As long as you have an identifier quot;d, you can escape backticks inside by doubling them. As a further step we can borrow a truly brilliant idea of using some placeholder (a proxy to represent. Error: 1000 SQLSTATE : HY000 ( ER_HASHCHK ) Message: hashchk Unused. Error: 1001 SQLSTATE : HY000 ( ER_NISAMCHK ) Message: isamchk. Unused. Error: 1002 SQLSTATE : HY000 ( ER_NO ) Message: NO Used in the construction of other messages. See Section, Troubleshooting InnoDB Data Dictionary Operations. Error: 1017 SQLSTATE : HY000 ( ER_FILE _NOT_FOUND ) Message: Can't find file: 's' (errno: d - s) Error: 1018 SQLSTATE : HY000 ( ER_CANT _READ _DIR ) Message: Can't read dir bissell little green proheat manual pdf of 's' (errno: d - s). Worse yet, some of bad answers aren't deleted but rather prospering. For example, there(1) are(2) still(3) many(4) answers(5), including the second most upvoted answer suggesting you manual string escaping - an outdated approach that is proven to be insecure.