Let’s say I am going to select the last 10 records of a table. The main consideration would be using the query:
SELECT recordId
FROM myTable
ORDER BY recordId DESC
LIMIT 10
The above query would select the last 10 records but they would not be returned in the order they were inserted into the table.

While working with PHP array, it’s quite often to know what data inside the array. For this purpose we can use print_r() function to display the data contained by the array to the screen. But what if we are working on a program that run behind the screen such as remote connection program, application that [...]

Below is the code that can be used to remove non ascii character from a string.
$cleanString = preg_replace(‘/[^(\x20-\x7F)]*/’,”, $dirtyString);
But what the hell that code means!
Well, that code uses regular expression to replace every single character that is not in the range of x20 – x7F in ASCII code with an empty character. In other words, [...]