The while loop

                
                    <?php  
                    $x = 1;
                     
                    while($x <= 5) {
                      echo "The number is: $x <br>";
                      $x++;
                    } 
                    ?>
                
                

The do...while loop

                
                    <?php 
                    $x = 1;
                    
                    do {
                      echo "The number is: $x <br>";
                      $x++;
                    } while ($x <= 5);
                    ?>
                
                

Another do...while loop

                
                    <?php 
                    $x = 6;
                    
                    do {
                      echo "The number is: $x <br>";
                      $x++;
                    } while ($x <= 5);
                    ?>
                
                

The for loop

                
                    <?php  
                    for ($x = 0; $x <= 10; $x++) {
                      echo "The number is: $x <br>";
                    }
                    ?>
                
                

The foreach loop

                
                    <?php  
                    $colors = array("red", "green", "blue", "yellow"); 
                    
                    foreach ($colors as $value) {
                      echo "$value <br>";
                    }
                    ?>
                
                

The break statement in a loop

                
                    <?php  
                    for ($x = 0; $x < 10; $x++) {
                      if ($x == 4) {
                        break;
                      }
                      echo "The number is: $x <br>";
                    }
                    ?>
                
                

The continue statement in a loop

                
                    <?php  
                    for ($x = 0; $x < 10; $x++) {
                      if ($x == 4) {
                        continue;
                      }
                      echo "The number is: $x <br>";
                    }
                    ?>