gchacaltana

<?php
//declaramos la funcion : randomString
function randomString($length, $type = '') {
    // Seleccionamos el tipo de caracteres que deseas que devuelva el string
    switch ($type) {
        case 'num':
            // Solo cuando deseas que devuelva numeros.
            $salt = '1234567890';
            break;
        case 'lower':

gchacaltana

//Generate GUID v4
    public static function generateGuidv4()
    {
        return sprintf('%04x%04x-%04x-%04x-%04x-%04x%04x%04x',
            // 32 bits for "time_low"
            mt_rand(0, 0xffff), mt_rand(0, 0xffff),
            // 16 bits for "time_mid"
            mt_rand(0, 0xffff),
            // 16 bits for "time_hi_and_version",
            // four most significant bits holds version number 4

gchacaltana

// apache_request_headers replicement for nginx
if (!function_exists('apache_request_headers')) { 
        function apache_request_headers() { 
            foreach($_SERVER as $key=>$value) { 
                if (substr($key,0,5)=="HTTP_") { 
                    $key=str_replace(" ","-",ucwords(strtolower(str_replace("_"," ",substr($key,5))))); 
                    $out[$key]=$value; 
                }else{
                    $out[$key]=$value; 
		}

gchacaltana

#How to convert yyyy-MM-ddTHH:mm:ssZ to yyyy-MM-dd HH:mm:ss

date_default_timezone_set("America/Lima");
echo date('Y-m-d H:i:s', strtotime('2012-09-10T10:30:00Z'));//date format UTC +00.00


#convert date format UTC to timezone America/Lima
date_default_timezone_set("UTC");//server configured UTC
$date = strtotime(date('Y-m-d H:i:s'));
echo(date_default_timezone_get() . "<br />");//output: UTC

gchacaltana

#Newbie programmer
def factorial(x):
    if x == 0:
        return 1
    else:
        return x * factorial(x - 1)
print factorial(6)


#First year programmer, studied Pascal

gchacaltana

server {
    listen 443;
    server_name api.project_name.pe;

    ssl on;
    ssl_certificate /etc/nginx/ssl/server.crt;
    ssl_certificate_key /etc/nginx/ssl/server.key;

    access_log /var/log/nginx/api.project_name.access.log;
    error_log /var/log/nginx/api.project_name.error.log;

gchacaltana

<?php
/**
 * return true if timezone exist.
 * @author Gonzalo Chacaltana Buleje <[email protected]>
 * @param string $timezone, timezone. example: America/Lima
 */
public static function checkTimeZone($timezone)
{
    if (!empty($timezone)) {
        $listTimeZone = DateTimeZone::listIdentifiers(DateTimeZone::ALL);

gchacaltana

<?php
/**
* return true if datetime format is valid.
* @author Gonzalo Chacaltana Buleje <[email protected]>
* @param datime $datetime, ISO 8601 format: YYYY-mm-dd HH:mm:ss
*/
public static function checkDatetimeIsoFormat($datetime)
{
  if (preg_match("/^(\d{4})-(\d{2})-(\d{2}) ([01][0-9]|2[0-3]):([0-5][0-9]):([0-5][0-9])$/", $datetime)) {
      return true;

gchacaltana

<?php
/**
*
* @param string $str The string to compute number of bytes
*
* @return The length in bytes of the given string.
*/
function getSizeStringBytes($str){
 // STRINGS ARE EXPECTED TO BE IN ASCII OR UTF-8 FORMAT
 

gchacaltana

<?php

function jsonpp($json, $istr = '  ')
{
    $result = '';
    for($p=$q=$i=0; isset($json[$p]); $p++)
    {
        $json[$p] == '"' && ($p>0?$json[$p-1]:'') != '\\' && $q=!$q;
        if(strchr('}]', $json[$p]) && !$q && $i--)
        {