# pg_set_error_context_visibility

(PHP 8 >= 8.3.0)

pg_set_error_context_visibility — Determines the visibility of the context's error messages returned by pg_last_error() and pg_result_error()

### 说明

pg_set_error_context_visibility(PgSql\Connection `$connection`, int `$visibility`): int

Determines the visibility of the context's error messages returned by pg_last_error() and pg_result_error()

### 参数

`connection`

  PgSql\Connection 实例。

`visibility`

  The required visibility: `PGSQL_SHOW_CONTEXT_NEVER`, `PGSQL_SHOW_CONTEXT_ERRORS` or `PGSQL_SHOW_CONTEXT_ALWAYS`.

### 返回值

The previous visibility level: `PGSQL_SHOW_CONTEXT_NEVER`, `PGSQL_SHOW_CONTEXT_ERRORS` or `PGSQL_SHOW_CONTEXT_ALWAYS`.

### 示例

示例 #1 pg_set_error_context_visibility() example

`<?php
$dbconn = pg_connect("dbname=publisher") or die("Could not connect");
if (!pg_connection_busy($dbconn)) {
pg_send_query($dbconn, "select * from doesnotexist;");
}
pg_set_error_context_visibility($dbconn, PGSQL_SHOW_CONTEXT_ALWAYS);
$res1 = pg_get_result($dbconn);
echo pg_result_error($res1);
?>`

### 参见

- pg_last_error() - 得到某连接的最后一条错误信息
- pg_result_error() - 获得跟 result 相关的错误信息

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