Categories

## How to Fibonacci Top-Down Memoization PHP ?

Top-Down Memoization PHP Fibonacci Problem

``````function fibonacci1(int \$n) {

\$result = array_fill(0, \$n + 1, 0);
<?php
function fibonacci1(int \$n) {

\$result = array_fill(0, \$n + 1, 0);
return fibonacci(\$n,\$result );
}

function fibonacci(int \$i, \$memo) {

if (\$i == 0 || \$i == 1) return \$i;

if (\$memo[\$i] == 0) {
\$memo[\$i] = fibonacci(\$i - 1, \$memo) + fibonacci(\$i - 2, \$memo);
}

echo " memo[\$i] ".\$memo[\$i]."\n\r";

return \$memo[\$i];
}

echo 'FINAL ' . fibonacci1(9);``````

Categories

## How to get Git deploy key

Step 1

Step 2

(from MAC)

``\$ pbcopy < ~/.ssh/id_rsa.pub``

Step 3

Categories

## How to fix Laravel Trailing Data Exception ?

Setting timestamps to false means you are going to lose both created_at and updated_at whereas you could set both of the keys in your model.

Case 1:

You have `created_at` column but not update_at you could simply set `updated_at` to false in your model

``````class ABC extends Model {

const UPDATED_AT = null;
``````

Case 2:

You have both `created_at` and `updated_at` columns but with different column names

You could simply do:

``````class ABC extends Model {

const CREATED_AT = 'name_of_created_at_column';
const UPDATED_AT = 'name_of_updated_at_column';
``````

Finally ignoring timestamps completely:

``````class ABC extends Model {

public \$timestamps = false;``````

Trailing data is a Carbon error, it’s because you probably use Postgres and your date returns milliseconds.

“created_at” => “2018-04-19 07:01:19.929554”

You can add the following method to your (base) model.

``````public function getDateFormat()
{
return 'Y-m-d H:i:s.u';
}``````

source : https://stackoverflow.com/questions/50210435/laravel-trailing-data-exception-when-model-save-or-update

Categories

Categories

## GIT : How to discard all local changes within a branch ?

### RESET BRANCH/FILE

``````-- force discard â€”
git reset --hard origin/<davidBranch_name>``````

example with the master branch

``````
git reset --hard origin/master``````
Categories

## What do you verify before deploying your code ?

``vendor/bin/phpcs --standard=PSR2 --colors -p src/ && vendor/bin/phpunit --stop-on-failure  ``

## PSR-2 Code Styling

This command returns all PSR-2 (code styling errors)

`vendor/bin/phpcs --standard=PSR2 ~/directory_to_scan`

vendor/bin/phpcs –standard=PSR2 –colors -pv src/ApiBundle

with more information

This command fix all fixable PSR-2 (code styling errors) issues

`vendor/bin/phpcbf --standard=PSR2 --report=json ~/directory_to_scan`

## Run the Functional and Unit Tests

vendor/bin/phpunit –stop-on-failure

Categories

## What are Twitter Card ideal dimension ? 800px by 418px

• The ideal image size for Twitter Cards is 800px by 418px, a 1.91:1 ratio. For App Cards, you can go with 800px by 800px for a 1:1 ratio.
• Videos can also be used in Twitter Cards. The recommended size for Website Card videos is 1200px by 1200px, or 1:1 aspect ratioFor App Card and Direct Message Card, the recommended size is 640px by 360px for a 16:9 ratio, or 360px by 360px for a 1:1 ratio.
• Twitter supports images that are JPEG or PNG format; no GIFs are allowed here.
• For best results, make sure your image is no larger than 3 MB.
• The approved file types are MP4 or MOV, ideally less than 30 MB in size, and no more than 1 GB when it comes to videos.
• Twitter advises a short video for these cards, so aim to keep it less than 15 seconds.
• For videos, place your logo in the upper left-hand corner.
• All Website Card videos are required to have closed captioning or text overlays.

source : https://www.adobe.com/express/discover/sizes/twitter

Categories

## PHPUnit, how to stop on failure ?

Find below the command that exit out phpunit ghracefully when a first error pop out=

``phpunit --stop-on-failure``
Categories

## How to get the exponent symbol (^) ?

well just copy it below :

^

Categories

## How to story point your project ? Fibonacci Sequence

0, 1, 2, 3, 5, 8, 13, 21, 34

This is the Fibonacci Sequence to use when updating your story points

1 – Easy (1-2 days)

2 – Medium (1-2 days)

3 – Hard (3-5 days)

5- Very hard (3-8 days)

8 – Difficult (8-12 days)

13 – Very difficult (8-15 days)