Yon Faith

以下是转自：
http://www.eway.com.ru/index.php ... 00508&setday=10

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「 解密ZEND加密后的PHP 」

先下载： vld-0.8.0  

执行
#tar -xzf vld-0.8.0.tgz //解压
#mv vld-0.8.0 vld //重命名
#cd -R vld ../php-4.3.8/ext //拷贝vld目录到php的解压目录下的ext中
#cd php-4.3.8
#rm configure //删除configure,因为下面的buildconf会重新生成新的configure
#./buildconf //如果出现错误,就按提示加上相应的参数.
#./configure --with-mysql --with-apxs2=/usr/www/bin/apxs --enable-vld 重新检查php
#make 编译
#make install 安装

服务器必须先安装ZendOptimizer
运行Zend后的文件,查看源代码就可以看到了.


方法二：
只要你有ｌｉｎｕｘ主機，再裝一個程序，就能瀏覽源碼了．

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "php.h"
#include "php_ini.h"
#include "ext/standard/info.h"
#include "php_vld.h"
#include "srm_oparray.h"

static zend_op_array* (*old_compile_file)(zend_file_handle* file_handle, int type TSRMLS_DC);
static zend_op_array* vld_compile_file(zend_file_handle*, int TSRMLS_DC);

static void (*old_execute)(zend_op_array *op_array TSRMLS_DC);
static void vld_execute(zend_op_array *op_array TSRMLS_DC);


function_entry vld_functions[] = {
{NULL, NULL, NULL}
};


zend_module_entry vld_module_entry = {
#if ZEND_MODULE_API_NO >= 20010901
STANDARD_MODULE_HEADER,
#endif
"vld",
vld_functions,
PHP_MINIT(vld),
PHP_MSHUTDOWN(vld),
PHP_RINIT(vld),
PHP_RSHUTDOWN(vld),
PHP_MINFO(vld),
#if ZEND_MODULE_API_NO >= 20010901
"0.8.0",
#endif
STANDARD_MODULE_PROPERTIES
};


#ifdef COMPILE_DL_VLD
ZEND_GET_MODULE(vld)
#endif

ZEND_BEGIN_MODULE_GLOBALS(vld)
int active;
int skip_prepend;
int skip_append;
int execute;
ZEND_END_MODULE_GLOBALS(vld)

ZEND_DECLARE_MODULE_GLOBALS(vld)

#ifdef ZTS
#define VLD_G(v) TSRMG(vld_globals_id, zend_vld_globals *, v)
#else
#define VLD_G(v) (vld_globals.v)
#endif

PHP_INI_BEGIN()
STD_PHP_INI_ENTRY("vld.active",  "0", PHP_INI_SYSTEM, OnUpdateBool, active,  zend_vld_globals, vld_globals)
STD_PHP_INI_ENTRY("vld.skip_prepend", "0", PHP_INI_SYSTEM, OnUpdateBool, skip_prepend, zend_vld_globals, vld_globals)
STD_PHP_INI_ENTRY("vld.skip_append", "0", PHP_INI_SYSTEM, OnUpdateBool, skip_append, zend_vld_globals, vld_globals)
STD_PHP_INI_ENTRY("vld.execute",  "1", PHP_INI_SYSTEM, OnUpdateBool, execute,  zend_vld_globals, vld_globals)
PHP_INI_END()

static void vld_init_globals(zend_vld_globals *vld_globals)
{
vld_globals->active  = 0;
vld_globals->skip_prepend = 0;
vld_globals->skip_append = 0;
vld_globals->execute  = 1;
}


PHP_MINIT_FUNCTION(vld)
{
ZEND_INIT_MODULE_GLOBALS(vld, vld_init_globals, NULL);
REGISTER_INI_ENTRIES();
old_compile_file = zend_compile_file;
old_execute = zend_execute;

return SUCCESS;
}


PHP_MSHUTDOWN_FUNCTION(vld)
{
UNREGISTER_INI_ENTRIES();

zend_compile_file = old_compile_file;
zend_execute  = old_execute;

return SUCCESS;
}



PHP_RINIT_FUNCTION(vld)
{
if (VLD_G(active)) {
  zend_compile_file = vld_compile_file;
  if (!VLD_G(execute)) {
   zend_execute  = vld_execute;
  }
}
return SUCCESS;
}



PHP_RSHUTDOWN_FUNCTION(vld)
{
zend_compile_file = old_compile_file;
zend_execute  = old_execute;

return SUCCESS;
}


PHP_MINFO_FUNCTION(vld)
{
php_info_print_table_start();
php_info_print_table_header(2, "vld support", "enabled");
php_info_print_table_end();

}

static int vld_check_fe (zend_op_array *fe, zend_bool *have_fe TSRMLS_DC)
{
if (fe->type == ZEND_USER_FUNCTION) {
  *have_fe = 1;
}

return 0;
}

static int vld_dump_fe (zend_op_array *fe TSRMLS_DC)
{
if (fe->type == ZEND_USER_FUNCTION) {
  fprintf(stderr, "Function %s:
", fe->function_name);
  vld_dump_oparray(fe);
  fprintf(stderr, "End of function %s.

", fe->function_name);
}

return ZEND_HASH_APPLY_KEEP;
}

#ifdef ZEND_ENGINE_2
static int vld_dump_cle (zend_class_entry **class_entry TSRMLS_DC)
#else
static int vld_dump_cle (zend_class_entry *class_entry TSRMLS_DC)
#endif
{
zend_class_entry *ce;
zend_bool have_fe = 0;

#ifdef ZEND_ENGINE_2
ce = *class_entry;
#else
ce = class_entry;
#endif

if (ce->type != ZEND_INTERNAL_CLASS) {
  zend_hash_apply_with_argument(&ce->function_table, (apply_func_arg_t) vld_check_fe, (void *)&have_fe TSRMLS_CC);
  if (have_fe) {
   fprintf(stderr, "Class %s:
", ce->name);
   zend_hash_apply(&ce->function_table, (apply_func_t) vld_dump_fe TSRMLS_CC);
   fprintf(stderr, "End of class %s.

", ce->name);
  } else {
   fprintf(stderr, "Class %s: [no user functions]
", ce->name);
  }
}

return ZEND_HASH_APPLY_KEEP;
}

/* {{{ zend_op_array vld_compile_file (file_handle, type)
*  This function provides a hook for compilation */
static zend_op_array *vld_compile_file(zend_file_handle *file_handle, int type TSRMLS_DC)
{
zend_op_array *op_array;

if (!VLD_G(execute) &&
  ((VLD_G(skip_prepend) && PG(auto_prepend_file) && PG(auto_prepend_file)[0] && PG(auto_prepend_file) == file_handle->filename) ||
(VLD_G(skip_append) && PG(auto_append_file) && PG(auto_append_file)[0] && PG(auto_append_file) == file_handle->filename)))
{
  zval nop;
  ZVAL_STRINGL(&nop, "RETURN ;", 8, 0);
  return compile_string(&nop, "NOP" TSRMLS_CC);;
}

op_array = old_compile_file (file_handle, type TSRMLS_CC);

if (op_array) {
  vld_dump_oparray (op_array);
}

zend_hash_apply (CG(function_table), (apply_func_t) vld_dump_fe TSRMLS_CC);
zend_hash_apply (CG(class_table), (apply_func_t) vld_dump_cle TSRMLS_CC);

return op_array;
}
/* }}} */

/* {{{ void vld_execute(zend_op_array *op_array TSRMLS_DC)
*  This function provides a hook for execution */
static void vld_execute(zend_op_array *op_array TSRMLS_DC)
{
// nothing to do
}
/* }}} */