


BUSCARDOR

pg_query

Manual de PHP
Anterior		Siguiente

pg_query

(PHP 4 >= 4.2.0, PHP 5)

pg_query -- Execute a query

Descripción

resource pg_query ( string query )

resource pg_query ( resource connection, string query )

pg_query() executes the query on the specified database connection.

If an error occurs, and FALSE is returned, details of the error can be retrieved using the pg_last_error() function if the connection is valid.

Nota: Although connection can be omitted, it is not recommended, since it can be the cause of hard to find bugs in scripts.

Nota: This function used to be called pg_exec(). pg_exec() is still available for compatibility reasons, but users are encouraged to use the newer name.

Lista de parámetros

connection: PostgreSQL database connection resource. When connection is not present, the default connection is used. The default connection is the last connection made by pg_connect() or pg_pconnect().
query: The SQL statement or statements to be executed.

Valores retornados

A query result resource on success, or FALSE on failure.

Ejemplos

Ejemplo 1. pg_query() example


<?php

$conn = pg_pconnect("dbname=publisher");
if (!$conn) {
  echo "An error occured.\n";
  exit;
}

$result = pg_query($conn, "SELECT author, email FROM authors");
if (!$result) {
  echo "An error occured.\n";
  exit;
}

while ($row = pg_fetch_row($result)) {
  echo "Author: $row[0]  E-mail: $row[1]";
  echo "<br />\n";
}
 
?>

Ver también

pg_connect()

pg_pconnect()

pg_fetch_array()

pg_fetch_object()

pg_num_rows()

pg_affected_rows()

Anterior	Inicio	Siguiente
pg_query_params	Subir	pg_result_error_field