<?php

print_r(meanMedianAndMode([8, 7, 2, 4, 2]))."\n";
print_r(meanMedianAndMode([8, 7, 2, 4, 2, 7]))."\n";

function meanMedianAndMode($nums) {
	$count = count($nums);
	sort($nums);
	//Calculates Median
	if ($count%2 == 0) {
		$median = ($nums[$count/2]+$nums[$count/2-1])/2;
	} else {
		$median = $nums[floor($count/2)];
	}

	// Calculates Mode
	$counted = array_count_values($nums);
	$max = max($counted);
	// Checks if there is more than one Mode
	$counted_max = array_count_values($counted);
	if ($counted_max[$max] == 1) {
		$mode = array_search($max, $counted);
	} else {
		foreach ($counted as $key => $value) {
			if ($value == $max) {
				$mode[] = $key;
			}
		}
	}

	return [
		'mean' => array_sum($nums) / $count,
		// average number
		'median' => $median,
		'mode' => $mode
	];
}

<?php

print_r(average([4, 1, 5, 3, 7]));

function average($array){
	$count = 0;
	$sum = 0;
	foreach ($array as $item) {
		// Calculates the number of array members
		$count++;
		
		// Calculates sum of the array
		$sum += $item;
	}
	return $sum/$count;
}

// Using built-in functions
function calculateDetails_builtin($array){
	return array_sum($array)/count($array);
}

<?php

echo ohmsLaw_1(12, 220, "")."\n";
echo ohmsLaw_1(230, "", 2) ."\n";
echo ohmsLaw_1("", 220, 0.02) ."\n";
echo ohmsLaw_1("", "", 10)."\n";
echo ohmsLaw_1(500, 50, 10)."\n";

function ohmsLaw_1($voltage, $resistance, $current) {
	if ($voltage == "" && $resistance == "" ||
		$voltage == "" && $current == "" ||
		$resistance == "" && $current == "" ||
		$voltage != "" && $resistance != "" && $current != "") {
		return "Invalid";
	}

	if ($voltage == "") {
		$res = $resistance*$current;
	}

	if ($resistance == "") {
		$res = $voltage/$current;
	}
	if ($current == "") {
		$res = $voltage/$resistance;
	}

	return $res;
}

//using empty function
function ohmsLaw_2($voltage, $resistance, $current) {
	if (empty($voltage) && empty($resistance) ||
		empty($voltage) && empty($current) ||
		empty($resistance) && empty($current) ||
		!empty($voltage) && !empty($resistance) && !empty($current)
	) {
		return "Invalid";
	}

	if (empty($voltage)) {
		$res = $resistance*$current;
	}
	if (empty($resistance)) {
		$res = $voltage/$current;
	}
	if (empty($current)) {
		$res = $voltage/$resistance;
	}
	return round($res, 2);
}

<?php

print_r(twoSum([4,4], 8));
print_r(twoSum([3,2,4], 6));
print_r(twoSum([1,3,4,2], 6));
print_r(twoSum([2,11,7,15], 9));
print_r(twoSum([-1,-2,-3,-4,-5], -8));

function twoSum($nums, $target){
	$cnt=count($nums);
	
	for ($i=0; $i<$cnt-1; $i++){
		for ($j=$i+1; $j<$cnt; $j++){
			
			if ($nums[$i]+$nums[$j]==$target){
				
				return [$i, $j];
			}
		}
	}
	
}

time limit

file_get_contents

timeout

http

$opts = [
    "http" => [
        "method" => "GET",
        "timeout"=> 1200,
        "header" => 
            "Channel-Name: ".CHANNEL."\r\n" .
            "Authorization: ".AUTHORIZATION."\r\n"
    ]
];
// DOCS: https://www.php.net/manual/en/function.stream-context-create.php
$context = stream_context_create($opts); //, false, $context

$startTime = microtime(1);
$res = file_get_contents($url . $query, false, $context);

cd File Name

git clone <repository addres copied>

git push

git status

GIT COMMIT -M <>