根据用户传入的参数调用用户函数的php扩展

这是目的是一个示例，php本身就有这样的函数

  

PHP_FUNCTION(thread_wrok)
{
	zval *cls=NULL,*zvalue=NULL,*z_method;


	//---------------------------------------------------------
	zval ***params=NULL;

	int arg_count = ZEND_NUM_ARGS();

	if (arg_count <1 ) {
		WRONG_PARAM_COUNT;
	}
	
	params = (zval ***) safe_emalloc(sizeof(zval **), arg_count, 0);

	if (zend_get_parameters_array_ex(arg_count, params) == FAILURE) {
		efree(params);
		RETURN_FALSE;
	}

	z_method=*params[0];
	
	if(arg_count>1&¶ms[1])
	{
		cls=*params[1];
	}

	if ( Z_TYPE_P(z_method) != IS_STRING ) 
	{
		php_error_docref(NULL TSRMLS_CC, E_WARNING, "First param must be string");
		RETURN_FALSE;
	}


	//---------------------------------------------------------
	/*
	char *method;
	int method_len;
	if (
		zend_parse_parameters( ZEND_NUM_ARGS() TSRMLS_CC, "s|o", &method, &method_len, &cls) == FAILURE
	)
	{
		RETURN_FALSE;
	}

	MAKE_STD_ZVAL(z_method);

	ZVAL_STRING(z_method, method, 1);
	
	if (method && zend_hash_find(Z_ARRVAL_P(method_records), method, method_len + 1, (void**)&zvalue) != FAILURE) 
	{
		RETURN_FALSE;
	}

	*/

	//---------------------------------------------------------

	zval *retval_ptr;
	arg_count = arg_count-2>0?arg_count-2:0;
	if(Z_TYPE_P(cls) == IS_OBJECT || Z_TYPE_P(cls) == IS_STRING )
	{


		if (call_user_function_ex(EG(function_table), &cls  , z_method, &retval_ptr, arg_count, arg_count?params+2:NULL , 0, NULL TSRMLS_CC) == SUCCESS) {
			if (retval_ptr) {		
				zval_ptr_dtor(&retval_ptr);
			}
		} else {
			php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to call class method: %s()", Z_STRVAL_P(z_method));
			RETURN_FALSE;
		}
	}else{
		if (call_user_function_ex(CG(function_table), NULL, z_method, &retval_ptr, arg_count, arg_count?params+2:NULL , 0, NULL TSRMLS_CC) == SUCCESS )
		{
			if (retval_ptr) {		
				zval_ptr_dtor(&retval_ptr);
			}
		} else {
			php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to call %s()", Z_STRVAL_P(z_method));
			RETURN_FALSE;
		}
	}

	//efree(z_method);

	RETURN_TRUE;
}

调用

<?php 
 $br = (php_sapi_name() == "cli")? "":"<br>"; 
  
 if(!extension_loaded('threadwork')) { 
     dl('threadwork.' . PHP_SHLIB_SUFFIX); 
 } 
 class a{ 
     function e($a1=0,$a2="") 
     {    
         echo "method e,$a1,$a2\n"; 
     }    
 } 
 function e($a1=0,$a2="") 
 { 
     echo "function e,$a1,$a2\n"; 
 } 
  
 $a=new a(); 
 if(thread_wrok("e",$a)) 
 { 
     echo "a-> OK\n"; 
 } 
 else echo "NO\n"; 
  
 if(thread_wrok("e","a",date("Y-m-d H:i:s"))) 
 { 
     echo "&a->e OK\n"; 
 } 
  
 if(thread_wrok("e",&$a,date("Y-m-d H:i:s"))) 
 { 
     echo "&a->e OK\n"; 
 } 
 thread_wrok($a); 
  
 if(thread_wrok("e",NULL,222,'this is str')) 
 { 
     echo "e OK\n"; 
 } 
 else echo "NO\n"; 
 ?> 

 

结果：

method e,0,
a-> OK
method e,2012-03-01 17:13:21,
&a->e OK
method e,2012-03-01 17:13:21,
&a->e OK
 
Warning: thread_wrok(): First param must be string in /opt/soft/php-5.2.8/ext/threadwork/threadwork.php on line 34
function e,222,this is str
e OK

 

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