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    Guest Message by DevFuse

    PHP variables and functions

    House

    By House,
    in Web and Scripting

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    Recommended Posts

    House

    House 3

    Posted
    Posted

    Hello, I show you a bit of the basics of variables in PHP xD

     

    Every piece of script should be between

    <?php

    and at the end of your whole script

    ?>

     

    Okay, now to the variables:

     

    If you want to declare a variable, just simply think of a name, and put $ in front of it.

    For example, if you want a variable for username or so:

    $username = "hallo";

     

    Always put strings (letters) between " and " (quotation marks), integers (numbers, 0-9) don't need quotation marks, neither do booleans (TRUE or FALSE, 0 or 1 works too)

     

    if you want to look, what a variable is like and do something with it,

    for example: if you want to start a piece of script when the variable is 1 or TRUE, do:

    if($username == 1)
{
 echo "The username is 1.";
}

     

    remember, if you want to DECLARE a variable, write: "="

    if you want to CHECK a variable, write: "=="

    otherwise in if($username = 1) the piece will be execute after he changed it to 1, and he does it^^

     

    if you want to take variables from something someone entered in a form, it depends on the method you use.

    If the method is POST, use $_POST[' name of the input field '], if the method is GET, use $_GET[' name of the input field '].

     

    Remember, close EVERY sentence with a ";", a semicolon.

     

    Example for a mailing script:

     

    <html>
<head>
</head>
<body>

<form action=" <?php PHP_SERVER['self']; ?> " method="GET">
Your name:<br>
<input type="text" name="name" /><br>
eMail of the person you want to mail:<br>
<input type="text" name="address" /><br>
Subject:<br>
<input type="text" name="subject" /><br>
Content of the mail:<br>
<input type="text" name="content" /><br>
<input type="submit" name="submit" value="submit email!" /><br>
</form>

<?php
//If the SUBMIT button is pressed, THEN
if(isset($_POST['submit']))
{
$name = $_POST['name'];
$mail = $_POST['address'];
$content = $_POST['content'];
$subject = $_POST['subject'];

//Now we start the mail, REMEMBER, mailscripts will only work on servers where the mailing
//Function is enabled!
mail($mail, $subject, $content, "From: ".$name) or die("Mail could not be sent.");

//The or die function means, IF it doesn't work, then do this: (what's between the clamps ())
}
?>
</body>
</html>

     

    Have fun^^

    credits: nobody, everything selfcoded

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    .baddy

    .baddy 2

    Posted
    Posted

    Woh thats better^^

    thanks i will try it read it completely tomorrow i suppose.

    thanks xD

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    House

    House 3

    Posted
    • Author
    Posted
    yeh it works i wanna have some more i can do only some with nvu (its a html editor O.o)

     

    Download Adobe DreamWeaver™ I can send you some download links this afternoon xD

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