pg_escape_identifier
(PHP 5 >= 5.4.4, PHP 7, PHP 8)
pg_escape_identifier — Escape a identifier for insertion into a text field
Descrizione
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.
Nota:
This function has internal escape code and can also be used with PostgreSQL 8.4 or less.
Elenco dei parametri
-
connection -
An PgSql\Connection instance. When
connectionis unspecified, the default connection is used. The default connection is the last connection made by pg_connect() or pg_pconnect().AvvisoAs of PHP 8.1.0, using the default connection is deprecated.
-
data -
A string containing text to be escaped.
Valori restituiti
A string containing the escaped data.
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};");
?>Vedere anche:
- pg_escape_literal() - Escape a literal for insertion into a text field
- pg_escape_bytea() - Aggiunge le sequenze di escape ai dati binari nel tipo bytea
- pg_escape_string() - Aggiunge le sequenze di escape nei tipi text/char
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