If you’ve been developing with PHP for a while, you’ve probably come across this situation in the past:
<?php
foreach ($somearray as &$element) {
$element = some_function($element);
}
It’s a common sight: taking an array and running (well, walking) its elements through a particular function. Luckily, PHP provides a simple yet powerful function to overcome this: array_walk().
Converting currency would not have been a big deal if the exchange rate was fixed. But given that the exchange rate changes every other second, we use services from one of the trusted sites to show the latest exchange rates. Here we take help of Google to find the latest currency exchange rate and convert the currency to required currency. I hope this piece of code helps you.
The difference between one-dimensional and multidimensional arrays is a simple one: a multidimensional array is a simple array that has simple arrays as elements, rather than strings or scalar variables.
Here is how our $arrBooks example from last week’s article can be expanded into a multidimensional array: Read the full story…