golang 调用 php7详解及实例

执行php文件

func Test_exec(t *testing.T) {  engine.Initialize()  ctx := &engine.Context{    Output: os.Stdout,  }  err := engine.RequestStartup(ctx)  if err != nil {    fmt.Println(err)  }  defer engine.RequestShutdown(ctx)  err = ctx.Exec("/tmp/index.php")  if err != nil {    fmt.Println(err)  }}

其中 /tmp/index.php 的内容为

<?phpecho("hello/n");

Eval，返回值

func Test_eval(t *testing.T) {  engine.Initialize()  ctx := &engine.Context{}  err := engine.RequestStartup(ctx)  if err != nil {    fmt.Println(err)  }  defer engine.RequestShutdown(ctx)  val, err := ctx.Eval("return 'hello';")  if err != nil {    fmt.Println(err)  }  defer engine.DestroyValue(val)  if engine.ToString(val) != "hello" {    t.FailNow()  }}

返回的value的生命周期所有权是golang程序，所以我们要负责DestroyValue

设置全局变量来传参

func Test_argument(t *testing.T) {  engine.Initialize()  ctx := &engine.Context{}  err := engine.RequestStartup(ctx)  if err != nil {    fmt.Println(err)  }  defer engine.RequestShutdown(ctx)  err = ctx.Bind("greeting", "hello")  if err != nil {    fmt.Println(err)  }  val, err := ctx.Eval("return $greeting;")  if err != nil {    fmt.Println(err)  }  defer engine.DestroyValue(val)  if engine.ToString(val) != "hello" {    t.FailNow()  }}

传递进去的参数的生命周期是php控制的，在request shutdown的时候内存会被释放。

PHP 回调 Golang

type greetingProvider struct {  greeting string}func (provider *greetingProvider) GetGreeting() string {  return provider.greeting}func newGreetingProvider(args []interface{}) interface{} {  return &greetingProvider{    greeting: args[0].(string),  }}func Test_callback(t *testing.T) {  engine.Initialize()  ctx := &engine.Context{}  err := engine.RequestStartup(ctx)  if err != nil {    fmt.Println(err)  }  defer engine.RequestShutdown(ctx)  err = engine.Define("GreetingProvider", newGreetingProvider)  if err != nil {    fmt.Println(err)  }  val, err := ctx.Eval(`  $greetingProvider = new GreetingProvider('hello');  return $greetingProvider->GetGreeting();`)  if err != nil {    fmt.Println(err)  }  defer engine.DestroyValue(val)  if engine.ToString(val) != "hello" {    t.FailNow()  }}

PHP 错误日志

func Test_log(t *testing.T) {  engine.PHP_INI_PATH_OVERRIDE = "/tmp/php.ini"  engine.Initialize()  ctx := &engine.Context{    Log: os.Stderr,  }  err := engine.RequestStartup(ctx)  if err != nil {    fmt.Println(err)  }  defer engine.RequestShutdown(ctx)  _, err = ctx.Eval("error_log('hello', 4); trigger_error('sent from golang', E_USER_ERROR);")  if err != nil {    fmt.Println(err)  }}

其中 /tmp/php.ini 的内容为

error_reporting = E_ALLerror_log = "/tmp/php-error.log"