The “for loop” execute a block of code a specified number of times while a specified condition is true.

Syntax

for (init; condition; increment)
{
    code to be executed;
}

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The “foreach” loop gives PHP an easy way to iterate over arrays and can only be used on arrays.

Syntax

There are two syntaxes although the second is only a minor extension of the first. More »

The power of the PHP language is the large number of built-in functions (more than 700 built-in function and counting lipitor weight gain.) But of course it also possible to create your own functions. In this PHP tutorial we will create our own functions.

A function will only be executed if a function is called by another piece of code. You can see that this is very handy. For example you can keep the browser from executing a script when the page loads by putting your script into a function. Only when the function is called (for example by pushing a button) the function is executed. More »

In a previous tutorial we looked at how to make your own PHP functions. In this PHP tutorial we will see how to use function parameters (for example passing a variable to a function) and function return values.

Functions Parameters

Parameters are specified after the function name, inside the parentheses. More »

In this PHP language tutorial we will look at PHP forms and form handling. We will use the PHP $_GET and $_POST variables to retrieve information from the HTML form. You use forms to get user input. More »

The PHP built-in $_GET function is used to collect values in a form (as name says, you do this with the method=”get”) You should remember that the information sent from a form with the GET method is visible to everyone, because the result is displayed in the address bar.

The $_GET function limits the number of characters to be send (max. 100 characters.) More »

The PHP built-in $_POST function is used to collect values in a form (as name says, you do this with the method=”post”) The information send with POST method is invisible to others (the opposite of the GET method.)

Another difference between the $_GET function and the $_POST function is that the $_POST function doesn’t limit the amount of information that you want to send. (Limit of $_GET is 100 characters.) But you should be aware of the following: by default there is an 8Mb maximum size for the post method. (If you want a larger size you can change it in the php.ini file. The setting is called post_max_size.) More »

In previous tutorials we already looked at the PHP built-in $_GET function and $_POST function. In this tutorial we take a quick look at the PHP built-in $_REQUEST function.

The PHP built-in $_REQUEST function can be used with both the GET and POST methods. More »

In this PHP language tutorial we will take a look at server side includes (SSI). We will look at include(), require() and require_once() functions. These functions can be used to insert content of one PHP file into another PHP file (on the server side) before the server will execute the file. More »

In this PHP web-programming language we will take a look at file handling. We will take a look at how to open en close a file, how to read a file line by line and how to read a file character by character. More »