From bb0af361c5d02139e3e9fdf267d61517e1ae3c54 Mon Sep 17 00:00:00 2001
From: Hartmut Holzgraefe <hholzgra@php.net>
Date: Tue, 5 Mar 2002 11:25:00 +0000
Subject: [PATCH] trying to explain some consequences of the differences
 between language constructs "echo" and "print"

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@71976 c90b9560-bf6c-de11-be94-00142212c4b1
---
 functions/strings.xml  | 11 ++++++++---
 language/functions.xml | 11 ++++++-----
 2 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/functions/strings.xml b/functions/strings.xml
index 551300c237..431cda00cd 100644
--- a/functions/strings.xml
+++ b/functions/strings.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.164 $ -->
+<!-- $Revision: 1.165 $ -->
  <reference id="ref.strings">
   <title>String functions</title>
   <titleabbrev>Strings</titleabbrev>
@@ -518,6 +518,9 @@ if (crypt($user_input,$password) == $password) {
      language construct) so you are not required to use parentheses
      with it. In fact, if you want to pass more than one parameter
      to echo, you must not enclose the parameters within parentheses.
+     It is not possible to use <function>echo</function> in a 
+     <link linkend="functions.variable-functions">variable function</link>
+     context, but you can use <function>print</function> instead.
      <example>
       <title><function>echo</function> examples</title>
       <programlisting role="php">
@@ -1657,9 +1660,11 @@ echo $second[1]; /* prints "another" */
      Outputs <parameter>arg</parameter>. &return.success;
     </simpara>
     <para>
-     <function>print</function> is not actually a function (it is a
+     <function>print</function> is not actually a real function (it is a
      language construct) so you are not required to use parentheses
-     with it.
+     with it. But <function>print</function>, opposed to 
+     <function>echo</function>, can be called using a 
+     <link linkend="functions.variable-functions">variable function</link>.
     </para>
     <example>
      <title><function>print</function> examples</title>
diff --git a/language/functions.xml b/language/functions.xml
index 90e6bfa0a7..548c77cf2c 100644
--- a/language/functions.xml
+++ b/language/functions.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.24 $ -->
+<!-- $Revision: 1.25 $ -->
  <chapter id="functions">
   <title>Functions</title>
 
@@ -332,11 +332,12 @@ $newref =& returns_reference();
     be used to implement callbacks, function tables, and so forth.
    </para>
    <para>
-    Variable functions won't work with language constructs such as
+    Variable functions won't work with language constructs other
+    than <function>print</function>, such as
     <function>echo</function>, <function>unset</function>,
-    <function>isset</function> and <function>empty</function>. This is
-    one of the major differences between PHP functions and language
-    constructs.
+    <function>isset</function> and <function>empty</function>.
+    This is one of the major differences between PHP functions 
+    and languageconstructs. 
    </para>
    <para>
     <example>