[IMG]
lesson.png
po #14
~~~~~
.   
~~~~~
  #13      ,   " for".   #14     ,     ,     ,     .     ,   do  while.      " do-while".
  .
 #1:
<?php
#  #14.   

#   
$a = 0;
$b = 1;

#  
do {
$a = $a * $b + 2;
++$b;
}
while ($a < 50);

# 
?>

    ,  .       .
,     $a  $b: 0  1.
,    .

  :
do {
$a = $a * $b + 2;
++$b;
}
..,   .
$a = 0 * 1 + 2;
++$b;

$a = 0 * 1 + 2; -    2. .
    $b .     ++$b;

 . ,     
while ($a < 50);
..    
$a = 0 * 1 + 2;  50,    .         $b.        ,      50.

,       do-while.
do {
       < >
}
    while (<>)

   :)