# dbplus_tcl

(PHP 4 <= 4.1.0, PECL dbplus >= 0.9)

dbplus_tcl — Execute TCL code on server side

### 说明

dbplus_tcl ( int `$sid` , string `$script` ) : string

A db++ server will prepare a TCL interpreter for each client connection. This interpreter will enable the server to execute TCL code provided by the client as a sort of stored procedures to improve the performance of database operations by avoiding client/server data transfers and context switches.

dbplus_tcl() needs to pass the client connection id the TCL `script` code should be executed by. dbplus_resolve() will provide this connection id. The function will return whatever the TCL code returns or a TCL error message if the TCL code fails.

### 参数

`sid`

`script`

### 返回值

### 注释

Warning

此函数是实验性的。此函数的表象，包括名称及其相关文档都可能在未来的 PHP 发布版本中未通知就被修改。使用本函数风险自担 。

### 参见

- dbplus_resolve() - Resolve host information for relation