PHP Examples - Loops - While, Do While, For, Foreach

PHP Examples - Loops 
 While, Do While,  For, Foreach
Program:

<html >
<head>

<title>PHP Example 3 : Loops</title>
</head>

<body>
<?php
 
 echo "PHP Example 3";
 echo"<br/>"; // line break
 echo"<h1>";
 echo"LOOPS";
 echo"</h1>";
 echo"<br/><li>";
 echo"WHILE LOOP: PRIME NUMBERS: ";
 echo"<br/>";
 $i=2;
 while($i<50)
 {
  $flag=true;
  $j=2;
  while($j<($i/2))
   if($i%$j==0)
   {
    $flag=false;
    break;
   }
   else
    $j++;
  if($flag)
  echo $i.' ';
  $i++;
 }
 echo"<br/></li>";

 echo"<br/><li>";

 echo"FOR LOOP: FIBONACCI NUMBERS";
 echo"<br/>";
 $t1=1;
 $t2=1;
 echo $t1.' '.$t2;
 for($i=1;$i<10;$i++)
 {
  $t3=$t1+$t2;
  $t1=$t2;
  $t2=$t3;
  echo ' '.$t3;
 }
 
 echo"<br/></li>";
  
  
 echo"<br/><li>";
 echo"DO WHILE LOOP: NATURAL NUMBERS ";
 echo"<br/>";
 $i=1;
 do{
  echo " $i";
  $i++;
 }while($i<=10);
 echo"<br/></li>";
 
 echo"<br/><li>";
 echo"FOR EACH LOOP: STUDENTS & MARKS "; 
 echo"<br/>";
 
   $mark["Mithun"]= "40";
   $mark["Shibin"]= "38";
   $mark["Manzoor"]= "35";
   $mark["Suhail"]= "45";
   $mark["Jishnu"]="36";
 
   foreach( $mark as $key => $value)
   {
    echo "Name: $key, Marks: $value <br/>"; 
   }
 echo"<br/></li>"; 

 echo "<br/><b>";
 echo"WWW.2K8618.BLOGSPOT.COM";
 echo"</b>";
?>


</body>
</html>

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