HoangPV

<?php

echo strRevCha("Take a string, then for every words we reverse the order of character.");

/**
 * Take a string, then for every words we reverse the order of character.
 *
 * @param String $str a string
 * @return String|null $strOutput
 * @author Phan Vu Hoang <[email protected]>

HoangPV

<?php

/**
 * return backward read primes
 *
 * Find all Backwards Read Primes between two positive given numbers
 * (both inclusive), the second one being greater than the first one.
 * The resulting array or the resulting string will be ordered
 * following the natural order of the prime numbers.
 *

HoangPV

<?php 

class Automobile 
{
	private $vehicleMake; 
	private $vehicleModel;

	public function __construct($make, $model) 
	{
		$this->vehicleMake = $make;

HoangPV

<?php

/**
 * You'll have to translate a string to Pilot's alphabet (NATO phonetic alphabet) wiki.
 *
 * @author Phan Vu Hoang <[email protected]>
 */

function to_nato($words) {
 $lib['a']="Alpha";

HoangPV

 <?php
 
 /**
  * return a boolean true if all rotations of strng are included in arr (C returns 1)
  * 
  * @param string $s 
  * @param array $arr
  * @return boolean
  * @author Phan Vu Hoang <[email protected]>
  */

HoangPV

<?php

/**
 * check whether an array can be turn to non-descending order by a single swap 2 elements
 *
 * @param array $a
 * @return bool
 * @author Phan Vu Hoang <[email protected]>
 */
function solution($a)

HoangPV

<?php

/**
 * return the max words of sentences, which is from a text
 *
 * @param $s
 * @return mixed
 * @author Phan Vu Hoang <[email protected]>
 */
function solution($s)

HoangPV

<?php 
/**
 * Convert a multi-dimensional, associative array to CSV data
 * @param  array $data the array of data
 * @return string       CSV text
 */
function str_putcsv($data) {
        # Generate CSV data from array
        $fh = fopen('php://temp', 'rw'); # don't create a file, attempt
                                         # to use memory instead

HoangPV

<?php 

/**
 * Replace With Alphabet Position
 *
 * @author  Phan Vu Hoang <[email protected]>
 */

function alphabet_position(string $str) {
	$ar_pos = [];

HoangPV

<?php 

function alphabet_position( $str ) {
	$str = strtolower( $str );

	$alphabetChars = 'abcdefghijklmnoqrstuvwxyz';
	$report=[];
	foreach (str_split($str) as $char) {
		$g = (strpos($alphabetChars, $char) !== false) ? strpos($alphabetChars, $char) : '';
		if ($g!=='') {