php vld 安装使用

cvs -d :pserver:[email protected]:/repository login
# passwd = srmread
cvs -d :pserver:[email protected]:/repository co -d vld vle
cd vld
./configure && make && make install
php -dextension=vld.so -dvld.active=1 script.php

能够看到编译后的OPCODE
执行：
php -dextension=vld.so -dvld.active=1 xml.php

<?php
$xw = new xmlWriter();
$xw->openMemory();
$xw->startDocument('1.0','UTF-8');
$xw->startElement('html');
$xw->startElement('head');
$xw->writeElement('title', 'Hello World!');
$xw->endElement();
$xw->startElement('body');
$xw->text('Hello World!');
$xw->endElement();
$xw->endElement();
$xw->endDocument();
echo $xw->outputMemory(true);
?>


Branch analysis from position: 0
Return found
filename:       /home/hanyh/workspace/php/learn/xml.php
function name:  (null)
number of ops:  40
compiled vars:  !0 = $xw
line     #  op                           fetch          ext  return  operands
-------------------------------------------------------------------------------
   2     0  ZEND_FETCH_CLASS                                 :0      'xmlWriter'
         1  NEW                                              $1      :0
         2  DO_FCALL_BY_NAME                              0          
         3  ASSIGN                                                   !0, $1
   3     4  ZEND_INIT_METHOD_CALL                            $4      !0, 'openMemory'
         5  DO_FCALL_BY_NAME                              0          
   4     6  ZEND_INIT_METHOD_CALL                            $6      !0, 'startDocument'
         7  SEND_VAL                                                 '1.0'
         8  SEND_VAL                                                 'UTF-8'
         9  DO_FCALL_BY_NAME                              2          
   5    10  ZEND_INIT_METHOD_CALL                            $8      !0, 'startElement'
        11  SEND_VAL                                                 'html'
        12  DO_FCALL_BY_NAME                              1          
   6    13  ZEND_INIT_METHOD_CALL                            $10     !0, 'startElement'
        14  SEND_VAL                                                 'head'
        15  DO_FCALL_BY_NAME                              1          
   7    16  ZEND_INIT_METHOD_CALL                            $12     !0, 'writeElement'
        17  SEND_VAL                                                 'title'
        18  SEND_VAL                                                 'Hello+World%21'
        19  DO_FCALL_BY_NAME                              2          
   8    20  ZEND_INIT_METHOD_CALL                            $14     !0, 'endElement'
        21  DO_FCALL_BY_NAME                              0          
   9    22  ZEND_INIT_METHOD_CALL                            $16     !0, 'startElement'
        23  SEND_VAL                                                 'body'
        24  DO_FCALL_BY_NAME                              1          
  10    25  ZEND_INIT_METHOD_CALL                            $18     !0, 'text'
        26  SEND_VAL                                                 'Hello+World%21'
        27  DO_FCALL_BY_NAME                              1          
  11    28  ZEND_INIT_METHOD_CALL                            $20     !0, 'endElement'
        29  DO_FCALL_BY_NAME                              0          
  12    30  ZEND_INIT_METHOD_CALL                            $22     !0, 'endElement'
        31  DO_FCALL_BY_NAME                              0          
  13    32  ZEND_INIT_METHOD_CALL                            $24     !0, 'endDocument'
        33  DO_FCALL_BY_NAME                              0          
  14    34  ZEND_INIT_METHOD_CALL                            $26     !0, 'outputMemory'
        35  SEND_VAL                                                 true
        36  DO_FCALL_BY_NAME                              1          
        37  ECHO                                                     $27
  16    38  RETURN                                                   1
        39* ZEND_HANDLE_EXCEPTION                                    

<?xml version="1.0" encoding="UTF-8"?>
<html><head><title>Hello World!</title></head><body>Hello World!</body></html>