PHP 5 >= 5.4.4, PHP 7, PHP 8
pg_escape_identifier - Escape a identifier for insertion into a text field
Code Examples

pg_escape_identifier( [PgSql\Connection$connection], string$data ): string

pg_escape_identifier escapes a identifier (e.g. table, field names) for querying the database. It returns an escaped identifier string for PostgreSQL server. pg_escape_identifier adds double quotes before and after data. Users should not add double quotes. Use of this function is recommended for identifier parameters in query. For SQL literals (i.e. parameters except bytea), pg_escape_literal or pg_escape_string must be used. For bytea type fields, pg_escape_bytea must be used instead.


This function has internal escape code and can also be used with PostgreSQL 8.4 or less.



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.


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


A string containing text to be escaped.

Return Values

A string containing the escaped data.


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

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Example of pg_escape_identifier

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Function pg_escape_identifier:

PostgreSQL Functions

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