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<?php
/**
* File name: GlobalHelper.php
* Last modified: 14/06/21, 7:36 PM
* Author: NearCraft - https://codecanyon.net/user/nearcraft
* Copyright (c) 2021
*/
if (!function_exists('formattedSeconds')) {
/**
* Seconds to Human Readable Time Format
* @param $seconds
* @return array
*/
function formattedSeconds($seconds)
{
$hours = floor($seconds / 3600);
$minutes = floor(($seconds / 60) % 60);
$sec = $seconds % 60;
return [
'seconds' => $seconds,
'short_readable' => "$hours:$minutes:$sec",
'detailed_readable' => $hours > 0 ? "$hours Hrs $minutes Min" : ($minutes > 0 ? "$minutes Min $sec Sec" : "$sec Sec")
];
}
}
if (!function_exists('calculateSpeedPerHour')) {
/**
* Calculate questions speed per hour
* @param $totalAnswered
* @param $totalSeconds
* @return float|int
*/
function calculateSpeedPerHour($totalAnswered, $totalSeconds)
{
return $totalAnswered !== 0 ? ($totalAnswered * 3600) / $totalSeconds : 0;
}
}
if (!function_exists('calculateAccuracy')) {
/**
* Calculate accuracy of a test
* @param $correctAnswered
* @param $totalAnswered
* @return float|int
*/
function calculateAccuracy($correctAnswered, $totalAnswered)
{
return $totalAnswered != 0 ? ($correctAnswered / $totalAnswered) * 100 : 0;
}
}
if (!function_exists('calculatePercentage')) {
/**
* Calculate percentage
* @param $x
* @param $y
* @return float|int
*/
function calculatePercentage($x, $y)
{
return $y != 0 ? $x / $y * 100 : 0;
}
}
if (!function_exists('calculatePercentileRank')) {
/**
* Calculate percentile
* @param $array
* @param $key
* @return float|int
*/
function calculatePercentileRank($array, $key)
{
$n = count($array);
$l = binarySearchCount($array, $n, $key);
return round(($l / $n) * 100, 0); // Percentile Rank Formula
}
}
if (!function_exists('hex2rgba')) {
/**
* Convert hex color to rgb(a)
*
* @param $color
* @param bool $opacity
* @return float|int
*/
function hex2rgba($color, $opacity = false) {
$default = 'rgb(0,0,0)';
//Return default if no color provided
if(empty($color))
return $default;
//Sanitize $color if "#" is provided
if ($color[0] == '#' ) {
$color = substr( $color, 1 );
}
//Check if color has 6 or 3 characters and get values
if (strlen($color) == 6) {
$hex = array( $color[0] . $color[1], $color[2] . $color[3], $color[4] . $color[5] );
} elseif ( strlen( $color ) == 3 ) {
$hex = array( $color[0] . $color[0], $color[1] . $color[1], $color[2] . $color[2] );
} else {
return $default;
}
//Convert hexadec to rgb
$rgb = array_map('hexdec', $hex);
//Check if opacity is set(rgba or rgb)
if($opacity){
if(abs($opacity) > 1)
$opacity = 1.0;
$output = 'rgba('.implode(",",$rgb).','.$opacity.')';
} else {
$output = 'rgb('.implode(",",$rgb).')';
}
//Return rgb(a) color string
return $output;
}
}
if (!function_exists('binarySearchCount')) {
/**
* A binary search function to return number of elements less than or equal to given key
*
* @param $arr
* @param $n
* @param $key
* @return float|int
*/
function binarySearchCount($arr, $n, $key)
{
$left = 0;
$right = $n - 1;
$count = 0;
while ($left <= $right) {
$mid = round(($right + $left) / 2, 0);
// Check if middle element is less than or equal to key
if ($arr[$mid] <= $key) {
; // At least (mid + 1) elements are there whose values are less than or equal to key
$count = $mid+1;
$left = $mid + 1;
} // If key is smaller, ignore right half
else
$right = $mid - 1;
}
return $count;
}
}