[PHP-DOC] cvs: phpdoc /en/language types.xml

[Jeroen van Wolffelaar]

jeroen          Sun Oct 28 13:47:39 2001 EDT

  Modified files:              
    /phpdoc/en/language types.xml 
  Log:
  Add tip about investigating types of expressions to first page of types
  section.
  
  
Index: phpdoc/en/language/types.xml
diff -u phpdoc/en/language/types.xml:1.54 phpdoc/en/language/types.xml:1.55
--- phpdoc/en/language/types.xml:1.54   Sun Oct 28 12:44:13 2001
+++ phpdoc/en/language/types.xml        Sun Oct 28 13:47:39 2001
@@ -1,5 +1,5 @@
 <?xml encoding="iso-8859-1"?>
-<!-- $Revision: 1.54 $ -->
+<!-- $Revision: 1.55 $ -->
  <chapter id="language.types">
   <title>Types</title>
 
@@ -104,6 +104,20 @@
    rather, it is decided at runtime by PHP depending on the context in
    which that variable is used.
   </simpara>
+  <tip>
+   <simpara>
+    If you want to check out the type and value of a certain <link
+     linkend="language.expressions">expression</link>, use
+    <function>var_dump</function>.
+   </simpara>
+   <simpara>
+    If you simply want a human-readable representation of the type for
+    debugging, use <function>gettype</function>. To check for a certain type,
+    do <emphasis>not</emphasis> use <function>gettype</function>, but use the
+    <literal>is_<replaceable>type</replaceable></literal> functions.
+   </simpara>
+   <!-- TODO: example(s) would be great -->
+  </tip>
   <simpara>
    If you would like to force a variable to be converted to a certain
    type, you may either <link