[PHP-DOC] cvs: phpdoc /en/functions strings.xml

[Ron Chmara]

ronabop         Tue Mar 20 21:59:44 2001 EDT

  Modified files:              
    /phpdoc/en/functions        strings.xml 
  Log:
  Adding more echo examples per errata.
  
Index: phpdoc/en/functions/strings.xml
diff -u phpdoc/en/functions/strings.xml:1.78 phpdoc/en/functions/strings.xml:1.79
--- phpdoc/en/functions/strings.xml:1.78        Sat Mar 10 10:51:47 2001
+++ phpdoc/en/functions/strings.xml     Tue Mar 20 21:59:43 2001
@@ -489,10 +489,12 @@
     <para>
      <function>Echo</function> is not actually a function (it is a
      language construct) so you are not required to use parantheses
-     with it.  
+     with it. In fact, if you want to pass more than one parameter
+     to echo, you must not enclose the parameters within parentheses.
      <example>
-      <title><function>Echo</function> example</title>
+      <title><function>Echo</function> examples</title>
       <programlisting role="php">
+&lt;?php
 echo "Hello World";
 
 echo "This spans
@@ -500,15 +502,41 @@
 output as well";
 
 echo "This spans\nmultiple lines. The newlines will be\noutput as well.";
+
+echo "escaping characters is done \"Like this\"."
+
+//You can use variables inside of an echo statement
+$foo = "foobar";
+$bar = "barbaz";
+
+echo "foo is $foo"; // foo is foobar
+
+// Using single quotes will print the variable name, not the value
+echo 'foo is $foo'; // foo is $foo
+
+// If you are not using any other characters, you can just echo variables
+echo $foo;          // foobar
+echo $foo,$bar;     // foobarbarbaz
+
+// because echo is not a function, following code is invalid. 
+($some_var) ? echo('true'): echo('false');
+
+// However, the following examples will work:
+($some_var) ? print('true'): print('false'); // print is a function
+echo ($some_var) ? 'true': 'false'; // changing the statement around
+?>
       </programlisting>
      </example>
+    </para>
+    <para>
+     <function>Echo</function> also has a shortcut syntax, where you
+     can immediately follow the opening tag with an equals sign.
+     <informalexample>
+      <programlisting role="php">
+I have &lt;?=$foo?> foo.
+      </programlisting>
+     </informalexample>
     </para>     
-    <note>
-     <para>
-      In fact, if you want to pass more than one parameter to echo,
-      you must not enclose the parameters within parentheses.
-     </para>
-    </note>
     <simpara>
      See also:
      <function>print</function>,