Variables:
Set up the variable:
<? php
$webTitle = 'Trick or Blog';
$pageTitle = 'Something';
?>
Echo the variable back in your document:
<h1> <? php echo $webTitle; ?> </h1>
PHP Globals:
Globals can be used on many or all pages. Save req_globals.php so you can call it where needed:
<? php
require_once('req_globals.php');
?>
PHP Includes:
Different than globals as its more of a template solution. For example for a navigation bar, save code in new document as mainmenu.php. Then call it in your main document wherever needed.
<? php
include('mainmenu.php');
?>
PHP Strings:
A string is the text part of the code between the parenthesis.
$str1 = 'This part of the code is called the string';
Concatenation:
Use a period to separate strings.
Example: $String1 . 'What' . $String2;
echo $myString;
echo $myNumber;
Mathematics:
You must use algebraic form parenthesis to force proper order.
echo $num1 + $num2 - $num3 / $num4 * $num5;
Conditionals:
Set up conditionals so variables can change the outcome.
<? php
if (false)
{
echo'<img src = " " />';
}
?>
<? php
$youarecrazy = 'yes';
if $youarecrazy = = 'yes';
{
echo '<img></img>';
}
else
{
echo ' ';
}
?>