Merge pull request #96 from paierlep/master

added a few sentences about constants
This commit is contained in:
Adam Bard 2013-08-01 23:52:25 -07:00
commit 3baf491ea6

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@ -9,7 +9,7 @@ filename: learnphp.php
This document describes PHP 5+.
```php
<?php // PHP code must be enclosed with <?php ? > tags
<?php // PHP code must be enclosed with <?php ?> tags
// If your php file only contains PHP code, it is best practise
// to omit the php closing tag.
@ -100,6 +100,21 @@ END;
echo 'This string ' . 'is concatenated';
/********************************
* Constants
*/
// A constant is defined by using define()
// and can never be changed during runtime!
// a valid constant name starts with a letter or underscore,
// followed by any number of letters, numbers, or underscores.
define("FOO", "something");
// access to a constant is possible by direct using the choosen name
echo 'This outputs '.FOO;
/********************************
* Arrays
*/