php 扩展调用 php 标准函数 及 操作全局变量

PHP_FUNCTION(md52) { zval **strtomd5; if((ZEND_NUM_ARGS() != 1) || (zend_get_parameters_ex(1, &strtomd5) != SUCCESS)) { WRONG_PARAM_COUNT; } zend_fcall_info fci; zend_fcall_info_cache fcic = empty_fcall_info_cache; zval *funname,*ret_ptr = NULL; MAKE_STD_ZVAL(funname); ZVAL_STRING(funname, "md5", 1); zval **param[1]; param[0] = strtomd5; call_user_function_ex(EG(function_table), NULL, funname, &ret_ptr, 1, param, 0, EG(active_symbol_table)); //call_user_function_ex(EG(function_table), NULL, funname, &ret_ptr, 1, param, 0, NULL); zval *new_variable; MAKE_STD_ZVAL(new_variable); ZVAL_LONG(new_variable,317); ZEND_SET_SYMBOL(&EG(symbol_table), "new_variable_name", new_variable); RETVAL_ZVAL(ret_ptr, 1, 0); zval_ptr_dtor(&funname); MAKE_STD_ZVAL(funname); ZVAL_STRING(funname, "gg", 1); char *string_contents = "new_variable_name"; zval *var_name; MAKE_STD_ZVAL(var_name); ZVAL_STRING(var_name, string_contents, 1); zend_printf("c_ext *strtomd5 = %s, func=%s\n", var_name->value.str.val , funname->value.str.val); param[0] = &var_name; if(call_user_function_ex(EG(function_table), NULL, funname, &ret_ptr, 1, param, 0, EG(active_symbol_table)) != SUCCESS) { zend_error(E_ERROR, "Function call failed"); } zend_printf("c_ext new_variable = %d\n", new_variable->value.lval); efree(funname); efree(var_name); }

<?php

echo md52('123qwe');

?>