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

pg_escape_literal Escape a literal for insertion into a text field


pg_escape_literal(PgSql\Connection $connection = ?, string $data): string

pg_escape_literal() escapes a literal for querying the PostgreSQL database. It returns an escaped literal in the PostgreSQL format. pg_escape_literal() adds quotes before and after data. Users should not add quotes. Use of this function is recommended instead of pg_escape_string(). If the type of the column is bytea, pg_escape_bytea() must be used instead. For escaping identifiers (e.g. table, field names), pg_escape_identifier() must be used.


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



Eine PgSql\Connection-Instanz. Falls connection nicht angegeben wurde, wird die Standardverbindung benutzt. Das ist die zuletzt mit pg_connect() oder pg_pconnect() aufgebaute Verbindung.


Seit PHP 8.1.0 ist die Verwendung der Standardverbindung veraltet.


A string containing text to be escaped.


A string containing the escaped data.


Version Beschreibung
8.1.0 Der Parameter connection erwartet nun eine PgSql\Connection-Instanz; vorher wurde eine Ressource erwartet.


Beispiel #1 pg_escape_literal() example

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

// Read in a text file (containing apostrophes and backslashes)
$data = file_get_contents('letter.txt');

// Escape the text data
$escaped = pg_escape_literal($data);

// Insert it into the database. Note that no quotes around {$escaped}
pg_query("INSERT INTO correspondence (name, data) VALUES ('My letter', {$escaped})");

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