PHP-language

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PHP-language

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by vinaymalik
                                        
                                                  Example
                              The following example prints the text "Hello World!" five times:
                              <html>
                              <body>
                              <?php
                              for ($i=1; $i<=5; $i++)
                              {
                                echo "Hello World!
                              ";
                              }
                              ?>
                              </body>
                              </html>      
                              The foreach Statement
                              The foreach statement is used to loop through arrays.
                              For every loop, the value of the current array element is assigned to $value (and the array pointer is moved by one) - so on the next loop, you'll be looking at the next element.
                              Syntax
                              foreach (array as value)
                              {
                                  code to be executed;
                              }      Example
                              The following example demonstrates a loop that will print the values of the given array:
                              <html>
                              <body>
                              <?php
                              $arr=array("one", "two", "three");
                              foreach ($arr as $value)
                              {
                                echo "Value: " . $value . "
                              ";
                              }
                              ?>
                              </body>
                              </html>      PHP Functions
                              In this tutorial we will show you how to create your own functions.
                              For a reference and examples of the built-in functions, please visit our  HYPERLINK "C:\Inetpub\wwwroot\w3schools\php\default.asp"    PHP Reference.
                              Create a PHP Function
                              A function is a block of code that can be executed whenever we need it.
                              Creating PHP functions:
                              All functions start with the word "function()" 
                              Name the function - It should be possible to understand what the function does by its name. The name can start with a letter or underscore (not a number) 
                              Add a "{"  - The function code starts after the opening curly brace 
                              Insert the function code 
                              Add a "}"  - The function is finished by a closing curly brace 
                              Example
                              A simple function that writes my name when it is called:
                              <html>
                              <body>
                              <?php
                              function writeMyName()
                                {
                                echo "Kai Jim Refsnes";
                                }
                              writeMyName();
                              ?>
                              </body>
                              </html>      
                              Use a PHP Function