使用C++11开发PHP7扩展1. PHP 可以用 C++ 扩展实现多线程 2. PHP-X 支持

文件名称: 使用C++11开发PHP7扩展

所属分类: PHP

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文件大小: 4mb

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上传时间: 2019-03-04

提供者: danyi******

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详细说明：1. PHP 可以用 C++ 扩展实现多线程 2. PHP-X 支持 Windows 平台，可以开发Windows的PHP扩展 3. 程序中大量运算的逻辑可以改为 C++ 扩展实现 4. 使用 PHP-X 开发商业软件，避免源码泄漏PHP的扩展加载过程 1.zend引擎的 php load extension函数 2.加载并执行So中 get module函数,返回 zend module entry 3. struct中设置了M(R)N|T、M(R) SHUTDOWN4个函数指针 4.执行 zend startup module ex函数启动扩展 5.PHP扩展加载依赖gibc的d库,是标准的 Linux动态链接库 if (type = MODULE_ PERSISTENT)i extension dir INI STR("extension dir"); extension dir PG(extension dir) if (type = MODULE_TEMPORARY)i error type E WARNING; else t error type E CORE WARNING; / Check if passed filename contains directory separators * if (strchr(filename,'/')!= NULL strchr(filename, DEFAULT SLASH)!=NULL)[ / Passing modules with full path is not supported for dynamically loaded extensions * if (type = MODULE_ TEMPORARY)( php error docref(NULL, E_WARNING, " Temporary module name should contain only filename") turn FAIlure ibpath estrup(filename) else if (extension dir & extension dirle]t int extension dir len =(int)strlen(extension dir); if (IS SLASH(extension dir [extension dir len]))( spprintf(&libpath, 0,%s%s", extension dir, filename );/ SAFE * spprintf(&libpath, 0,%s%c%s", extension dir, DEFAULT SLASH, filename);/* SAFE * / load dynamic symbol */ handle DL LOAD(libpath) if ( handle)[ #ifdef PHP WIn32 char *err GET DL ERRORO) f(err&&(*er!='\0"){ php error docref (NUll, error type, Unable to load dynamic library %s-%s", libpath, err) LocalFree(err) f else t php error docref (NUll, error type, Unable to load dynamic library %s-%s", libpath,"Unknown reason") #else php error docref(NUll, error type, Unable to load dynamic library %s-%s", libpath, GET DL ERRORO) GET DL ERROR O;/ free the buffer storing the error */ #endif efree (libpath) return FAIlUre efree (libpath) get module =(zend module entry *(*)(void)) DL FETCH SYMBOL(handle,"get module"); Some oS prepend to symbol names while their dynamic linker k does not do that automatically. Thus we check manually for get module. * if (!get module)i get module =(zend module entry *(*)(void))DL FETCH SYMBOL(handle,"get module"); if (!get module) f if (DL FETCH SYMBOL(handle, zend extension entry") DL FETCH SYMBOL(handle, " zend extension entry" ))t DL UNLOAD(handle); php_error_docref(NULL, error_type,"Invalid library (appears to be a Zend Extension, try loading using z return FAILURE, DL UNLOAD(handle) php error docref(NUll, error type,"Invalid library (maybe not a Php library) %s", filename ); return FAIlUre module entry get module if ((module entry zend register module ex(module entry )== NULl)[ DL UNLOAD(handle) return FAILUre if((type =MODULE TEMPORARY start now )& zend startup module ex(module entry)==FAILURe)[ DL UNLOAD (handle) return FAILURE j if ((type = MODULE TEMPORARY start now )&& module entry->request startup func)f if (module entry->request startup func(type, module entry->module number)== FaIlure[ php error docref(NULl, error type, Unable to initialize module %s", module entry->name) DL UNLOAD(handle) return FAIlure return SUCCESS; 创建PHP的扩展工程 1.扩展骨架生成工具: ext skel 2.编辑 config,n4 3.修改 extension. h头文件定义扩展的函数 4.修改 extension.c源文件,实现函数的逻辑 5. phpize、 configure、make、 make install 6.建议:参考其他扩展的源码编写PHP扩展-基本类型 zvaL a3 Sa=1234; ZVAL_ LONG(&a, 1234); sb=1234.56; zval b ZVAL DOUBLE(&b, 1234.56) sc= hello wor ldI zvaL ci ZVAL_STRING(&c,"hello wor ld") sd= array o: zval d se= false; array_init(&d); zval ej ZVAL BOOL (&e, o) 编写PHP扩展-类型推断 zval xvalue is_int(Svalue); Z-TYPE_P(value)== IS_LONG; is_float(Svalue); Z TYPE P(va lue) IS STRING is string(svalue) Z TYPE P(value)== IS ARRAY is_array(Svalue) Z TYPE P(value)== IS DOUBLE is_bool(Svalue); Z TYPE P(value) IS TRUE is object(Svalue) Z TYPE P(value) 工 S FALSE Z TYPE P(value)== IS_OBJECT

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