// Eval executes the PHP expression contained in script, and returns a Value
// containing the PHP value returned by the expression, if any. Any output
// produced is written context's pre-defined io.Writer instance.
func (c *Context) Eval(script string) (*Value, error) {
s := C.CString(script)
defer C.free(unsafe.Pointer(s))
result, err := C.context_eval(c.context, s)
if err != nil {
return nil, fmt.Errorf("Error executing script '%s' in context", script)
}
defer C.free(result)
val, err := NewValueFromPtr(result)
if err != nil {
return nil, err
}
c.values = append(c.values, val)
return val, nil
}
// Eval executes the PHP expression contained in script, and returns a Value
// containing the PHP value returned by the expression, if any. Any output
// produced is written context's pre-defined io.Writer instance.
func (c *Context) Eval(script string) (*value.Value, error) {
// When PHP compiles code with a non-NULL return value expected, it simply
// prepends a `return` call to the code, thus breaking simple scripts that
// would otherwise work. Thus, we need to wrap the code in a closure, and
// call it immediately.
s := C.CString("call_user_func(function(){" + script + "});")
defer C.free(unsafe.Pointer(s))
vptr, err := C.context_eval(c.context, s)
if err != nil {
return nil, fmt.Errorf("Error executing script '%s' in context", script)
}
val, err := value.NewFromPtr(vptr)
if err != nil {
return nil, err
}
return val, nil
}