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-rw-r--r--php.html.markdown15
1 files changed, 15 insertions, 0 deletions
diff --git a/php.html.markdown b/php.html.markdown
index f0c5c918..c6811282 100644
--- a/php.html.markdown
+++ b/php.html.markdown
@@ -100,6 +100,21 @@ 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
*/