Set the client encoding

# pg_set_client_encoding

(PHP 4 >= 4.0.3, PHP 5, PHP 7, PHP 8)

pg_set_client_encoding — Set the client encoding

### Description

pg_set_client_encoding(PgSql\Connection `$connection` = ?, string `$encoding`): int

pg_set_client_encoding() sets the client encoding and returns 0 if success or -1 if error.

PostgreSQL will automatically convert data in the backend database encoding into the frontend encoding.

> Note:

> The function used to be called pg_setclientencoding().

### Parameters

`connection`

  An PgSql\Connection instance. When `connection` is unspecified, the default connection is used. The default connection is the last connection made by pg_connect() or pg_pconnect().

  Warning

  As of PHP 8.1.0, using the default connection is deprecated.

`encoding`

  The required client encoding. One of `SQL_ASCII`, `EUC_JP`, `EUC_CN`, `EUC_KR`, `EUC_TW`, `UNICODE`, `MULE_INTERNAL`, `LATINX` (X=1...9), `KOI8`, `WIN`, `ALT`, `SJIS`, `BIG5` or `WIN1250`.

  The exact list of available encodings depends on your PostgreSQL version, so check your PostgreSQL manual for a more specific list.

### Return Values

Returns `0` on success or `-1` on error.

### Changelog

Version | Description
--- | ---
8.1.0 | The `connection` parameter expects an PgSql\Connection instance now; previously, a resource was expected.

### Examples

Example #1 pg_set_client_encoding() example

`<?php
$conn = pg_pconnect("dbname=publisher");
if (!$conn) {
echo "An error occurred.\n";
exit;
}
// Set the client encoding to UNICODE. Data will be automatically
// converted from the backend encoding to the frontend.
pg_set_client_encoding($conn, "UNICODE");
$result = pg_query($conn, "SELECT author, email FROM authors");
if (!$result) {
echo "An error occurred.\n";
exit;
}
// Write out UTF-8 data
while ($row = pg_fetch_row($result)) {
echo "Author: $row[0] E-mail: $row[1]";
echo "<br />\n";
}
?>`

### See Also

- pg_client_encoding() - Gets the client encoding

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