yohgaki         Sun Mar 24 20:29:56 2002 EDT

  Modified files:              
    /phpdoc/en/functions        outcontrol.xml 
  Log:
  Add ob_start() callback function limitations.
  
  
Index: phpdoc/en/functions/outcontrol.xml
diff -u phpdoc/en/functions/outcontrol.xml:1.26 phpdoc/en/functions/outcontrol.xml:1.27
--- phpdoc/en/functions/outcontrol.xml:1.26     Sat Feb  2 10:36:06 2002
+++ phpdoc/en/functions/outcontrol.xml  Sun Mar 24 20:29:56 2002
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.26 $ -->
+<!-- $Revision: 1.27 $ -->
  <reference id="ref.outcontrol">
   <title>Output Control Functions</title>
   <titleabbrev>Output Control</titleabbrev>
@@ -151,6 +151,15 @@
      the appropriate number of times. If multiple output callback
      functions are active, output is being filtered sequentially
      through each of them in nesting order.
+    </para>
+    <para>
+     <function>ob_end_clean</function>,
+     <function>ob_end_flush</function>, <function>ob_clean</function>,
+     <function>ob_flush</function> and <function>ob_start</function>
+     may not be called from callback function. If you call them from
+     callback function, behavior is undefined. If you would like to
+     delete buffer contents, return "" (null string) from callback
+     function.
     </para>
     <example>
      <title>User defined callback function example</title>


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