ThienTranDuy

Validator::extend('youtube', function ($attribute, $value, $parameters, $validator) {
    preg_match("#(?<=v=)[a-zA-Z0-9-]+(?=&)|(?<=v\/)[^&\n]+(?=\?)|(?<=v=)[^&\n]+|(?<=youtu.be/)[^&\n]+#", $value, $matches);
    return count($matches) > 0;
}, "Sorry, this doesn't look like a valid youtube URL");

ThienTranDuy

function diagonalDifference($arr) {
    $diagAc = [];
    $diagBd = [];
    $arrMain_len = count($arr);
    
    foreach ($arr as $key => $arrSub) {
        $arrSub_len = count($arrSub);
        
        if ($arrMain_len == $arrSub_len) {
            $diagAc[] = $arrSub[$key];

ThienTranDuy

function plusMinus($arr) {
    $arrLen = count($arr);
    $posi = count(array_filter($arr, "countPosi"));
    $nega = count(array_filter($arr, "countNega"));
    $zero = count(array_filter($arr, "countZero"));

    $ratioPosi = $posi / $arrLen;
    $ratioNega = $nega / $arrLen;
    $ratioZero = $zero / $arrLen;
    

ThienTranDuy

function staircase($n) {
    for ($i = 0; $i < $n; $i++) {
        echo str_repeat(" ", ($n - $i -1)). str_repeat("#", ($i + 1)) . "\n";
    }
}

ThienTranDuy

function miniMaxSum($arr) {
    $minArr = min($arr);
    $maxArr = max($arr);

    if ($minArr !== $maxArr) {
        $miniSum = array_sum(array_diff($arr, [$maxArr]));
        $maxSum = array_sum(array_diff($arr, [$minArr]));
    } else {
        // Case 13: 5 elements are the sames
        unset($arr[0]);

ThienTranDuy

function birthdayCakeCandles($ar) {
    $candles = array_count_values($ar);
    ksort($candles);
    $candleLast = array_key_last($candles);

    $tallestCandels = $candles[$candleLast];

    return $tallestCandels;
}

ThienTranDuy

function timeConversion($s) {
    return date("H:i:s", strtotime($s));
}

ThienTranDuy

function vowelsAndConsonants(s) {
    let vowels = ['a', 'e', 'i', 'o', 'u'];
    let sLen = s.length;
 
    for (let i = 0; i < sLen; i++) {
        if (vowels.includes(s[i])) {
            console.log(s[i]);
        }
    }

ThienTranDuy

server {
  listen 80;
  server_name main_domain.com www.main_domain.com;
  return 301 https://$server_name$request_uri;
}

server {
	listen 443 ssl default_server;

	# access_log off;

ThienTranDuy

#!/bin/bash
sync; echo 3 > /proc/sys/vm/drop_caches

## setup crontab */30 * * * * /usr/bin/bash /home/cronjob/cache-clear.sh