HTTP compression

ob_lib.inc.php3

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+<?php
+
+  if(!defined("__OB_LIB_INC__"))
+    define("__OB_LIB_INC__", 1);
+
+  # Output buffer functions for phpMyAdmin
+
+  # Copyright 2001 Jeremy Brand <jeremy@nirvani.net>
+  # http://www.jeremybrand.com/Jeremy/Brand/Jeremy_Brand.html
+
+  # Check for all the needed functions for output buffering
+  # Make some wrappers for the top and bottoms of our files.
+
+  function out_buffer_mode_get()
+  # This will be used eventually to support more modes.  It is
+  # needed because both header and footer functions must know
+  # what each other is doing.
+  {
+    if (function_exists('ob_start'))
+      $mode = 1;
+    else
+      $mode = 0;
+
+    # Zero (0) is no mode or in other words output buffering is OFF.
+
+    # Follow 2^0, 2^1, 2^2, 2^3 type values for the modes.
+    # Usefull if we ever decide to combine modes.  Then a bitmask
+    # field of the sum of all modes will be the natural choice.
+
+    header("X-ob_mode: $mode");
+  
+    return $mode;
+  }
+
+  # This function will need to run at the top of all pages if 
+  # output buffering is turned on.  It also needs to be passed $mode
+  # from the out_buffer_mode_get() function or it will be useless.
+  function out_buffer_pre($mode)
+  {
+    switch($mode)
+    {
+      case 1:
+        ob_start('ob_gzhandler');
+        $retval = TRUE;
+        break;
+
+      default:
+      case 0:
+        $retval = FALSE;
+        break;
+    }
+    return $retval;
+  }
+  
+  # This function will need to run at the bottom of all pages if
+  # output buffering is turned on.  It also needs to be passed $mode
+  # from the out_buffer_mode_get() function or it will be useless.
+  function out_buffer_post($mode)
+  {
+    switch($mode)
+    {
+      case 1:
+        # This output buffer doesn't need a footer.
+        $retval = TRUE;
+        break;
+
+      default:
+      case 0:
+        $retval = FALSE;
+    }
+    return $retval;
+  }
+
+?>