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pg_escape_identifier

(PHP 5 >= 5.4.4, PHP 7, PHP 8)

pg_escape_identifier — Escape an identifier for insertion into a text field

Descrizione

pg_escape_identifier(PgSql\Connection $connection = ?, string $string): string|false

pg_escape_identifier() escapes an 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.

Elenco dei parametri

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().

Avviso

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

string

A string containing text to be escaped.

Valori restituiti

A string containing the escaped data, or false on failure.

Log delle modifiche

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

Esempi

Example #1 pg_escape_identifier() example

<?php
// Connect to the database
$dbconn = pg_connect('dbname=foo');

// Escape the table name data
$escaped = pg_escape_identifier($table_name);

// Select rows from $table_name
pg_query("SELECT * FROM {$escaped};");
?>

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