Timer javascript

$a = 5;
$b = 2;

function Secti()
{
    global $a, $b;
    $b = $a + $b;
} 

Secti();
echo $b;// 7

// pred vsemi include file
$varGlob = 10;
include('some.inc');

$GLOBALS; // pole ktere obsahuje SERVER i vsechny uzivatelovi globalni promenne

function PrintFC()
{
   $a = $GLOBALS['varGlob']; // ziskame globalni promennou
   $GLOBALS['varGlob'] = 20; // muzeme prepsat jeji hodnotu 
   print $a; // 10
} 

PrintFC();
print $varGlob; // 20

var 1_radian_to_degree = 180 / Math.PI; // 57,295779513082320876798154814105 degree
var 1_degree_to_radian = Math.PI / 180; // 0,01745329251994329576923690768489 radian
var 360_degree =  2 * Math.PI * 1_radian_to_degree;

var degree = 36.86;
var opposite = 600;
var hypotenuse = 1000;
var adjacent = 800;
// degree
// sin 45° == 0.7071067811865475;
var sin = Math.sin(45 * Math.PI / 180.0) 
//sin == 0.7071067811865475;

// vypocet prepony (hypotenuse), kdyz zname 
// protilehlou (opposite) a uhel (degree)
hypotenuse2 = opposite/ Math.sin(degree * Math.PI / 180.0);

// vypocet protilehle (opposite)
opposite2 = hypotenuse * Math.sin(degree * Math.PI / 180);

// vypocitat uhel alfa z velikosti protilehle a prepony ve stupnich (degree)
degree2 = Math.asin(opposite / hypotenuse)* (180/Math.PI); // 1rad

// velikost prepony pomoci prilehle (adjacent) strany a cos a uhlu v stupnich (degree)
hypotenuse3 = adjacent / Math.cos(degree * Math.PI / 180);

// velikost prilehle (adjacent) strany pomoci prepony  a cos a uhlu v stupnich (degree)
adjacent2 = hypotenuse * Math.cos(degree *  Math.PI / 180);

tan = Math.tan(degree * Math.PI/180); // 45° == 0.9999999999999
degree3 = Math.atan(opposite / adjacent)* (180/Math.PI); // 1rad
adjacent3 =  opposite / Math.tan(degree *  Math.PI / 180);
opposite3 = adjacent * Math.tan(degree *  Math.PI / 180);

$country[0] = "cz"                                 
$country[1] = "sk"                                 
$country[2] = "de"                                 
$country[3] = "uk"                                 
$country[4] = "fr"                                 

// this do same 
$country[] =  "cz" 
$country[] =  "sk" 
$country[] =  "de" 
$country[] =  "uk" 
$country[] =  "fr" 

// or
$country = array('cz','sk','de','uk','fr');

// get array items count                         
$length = count($country); 

for($i=0;$i<$length;$i++){
  print $country[$i].'<br>';// cz sk de uk fr
}  

                                                 
// or like this                                  
$country[50] = 'ca';                             
$country[10] = 'fr';                             
$country[20] = 'us'                              
                                                 
// now country will index 51                     
$country[] = 'ru';  

// or 
$country = array('5'=>'cz','sk','de','uk','fr'); 
/*
Array
(
    [5] => cz
    [6] => sk
    [7] => de
    [8] => uk
    [9] => fr
)
*/                            
                                                 
// you can do this                               
$country["cz"] = 1571;                           
$country["sk"] = 1572;                           
$country["de"] = 1573;                           
$country["uk"] = 1574;                           
$country["fr"] = 1575;                           
                                                 
print $country["uk"]; // 1574                           
                                                 
                                                 
// print all items key and value                         
foreach ($country as $key => $value){            
	print $key; // cz, sk, de, uk, fr              
	print $value; // 1571, 1572,  1573, 1574, 1575 
}                                                

var n = 1;
alert(n);

n = 5;
alert(n);

var n = 5;
// wait 5 second / do next code
// next code put into function and call this function by setTimeout
setTimeout("nextCodeFc (n)",5000); // wait for 5000 millisecond == 5 second and execute

// how put string as parameter into setTimeout

var str = "Hello string parameter!";

setTimeout('nextCodeFc("str")',3000); // produce "str"

setTimeout('nextCodeFc("'+str+'")',3000); // produce "Hello string parameter!"

setTimeout("nextCodeFc(str)",3000); // produce Hello string parameter!


function nextCodeFc (n){
  // do work .........

  alert(n);
}

CORS-Cross-Origin-Resource-Sharing Header set Access-Control-Allow-Origin Source Code Example

Usefull Links here

https://www.moesif.com/blog/technical/cors/Authoritative-Guide-to-CORS-Cross-Origin-Resource-Sharing-for-REST-APIs/

Apache .htaccess Allow File Types

<IfModule mod_setenvif.c>
  <IfModule mod_headers.c>
    <FilesMatch ".(bmp|cur|gif|ico|jpe?g|png|svgz?|webp)$">
      SetEnvIf Origin ":" IS_CORS
      Header set Access-Control-Allow-Origin "*" env=IS_CORS
    </FilesMatch>
  </IfModule>
</IfModule>

.htaccess which is closest to the file!!!!!