Puzzle: A Simple Solution for Fizz Buzz Test

There are multiple approaches to solve the Fizz Buzz Test:

Write a program that prints the numbers from 1 to 100. But for multiples of three print “Fizz” instead of the number and for the multiples of five print “Buzz”. For numbers which are multiples of both three and five print “FizzBuzz”

PHP: Implode or Trim – Concatenating strings in a loop

There are bunch of questions circulating in Stack Overflow like this. People when trying to concatenate some strings with another string or a character, they simply concatenate with . inside the loop like this:

$values = [1, 2, 3];
$string = '';
foreach ($values as $value) {
   $string .= $value . " AND ";
}
echo $string;

This leaves string like this:

1 AND 2 AND 3 AND

Then they come up with a question as how to remove the last AND.

PHP: Only variables should be passed by reference

Often times developers end up with this error:

Notice: Only variables should be passed by reference in <file_name>.php on line <line_number>

PHP INI parser with environment support

Reading the INI file using PHP, based on the environment can be performed using few configuration in Apache.

Step 1: Set environment in Apache

Open the apache.conf or httpd.conf from apache server’s directory and add the following line:

SetEnv APPLICATION_ENV "dev"

Route Model Binding : Multiple Route Key

When using Implicit Model Binding, you can use getRouteKeyName  to use alternative column such as slug instead of id to inject a model instance directly inside routes. Now, model can be bound only with slug column. When you think to use id, the binding fails. 

Implicit Model Binding : Changing Model’s Route Key

When using Implicit Model Binding, the model can be fetched using the id parameter by default. Consider when you need to list product details for an id, you use:

Route::get('product/{id}', 'ContactsController@index');

Xdebug not running with WAMP in CLI

Though Xdebug is installed and enabled in php.ini, it fails to run through CLI when using WAMP

array_unique for multidimensional array

array_unique removes duplicates from only flattened one dimensional array. But still it can be used in a multi-dimensional array with a small work-around.

String replace nth occurrence

We can replace every occurrence of character or a string using str_replace. But to replace only a specific nth occurrence, we need a small work around:

Sum n times

Adding two or more time in PHP is now easy. A small utility function can be use to sum multiple time in any format.