Sends a request to create a prepared statement with the given parameters,
without waiting for completion.
This is an asynchronous version of pg_prepare(): it returns TRUE if it was able to
dispatch the request, and FALSE if not. After a successful call, call
pg_get_result() to determine whether the server successfully created the
prepared statement. The function's parameters are handled identically to
pg_prepare(). Like pg_prepare(), it will not work
on pre-7.4 versions of PostgreSQL.
Parameters
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().
stmtname
The name to give the prepared statement. Must be unique per-connection. If
"" is specified, then an unnamed statement is created, overwriting any
previously defined unnamed statement.
query
The parameterised SQL statement. Must contain only a single statement.
(multiple statements separated by semi-colons are not allowed.) If any parameters
are used, they are referred to as $1, $2, etc.
Return Values
Returns TRUE on success, FALSE on failure. Use pg_get_result()
to determine the query result.
Examples
Example 1. Using pg_send_prepare()
<?php $dbconn = pg_connect("dbname=publisher") or die("Could not connect");
// Prepare a query for execution if (!pg_connection_busy($dbconn)) { pg_send_prepare($dbconn, "my_query", 'SELECT * FROM shops WHERE name = $1'); $res1 = pg_get_result($dbconn); }
// Execute the prepared query. Note that it is not necessary to escape // the string "Joe's Widgets" in any way if (!pg_connection_busy($dbconn)) { pg_send_execute($dbconn, "my_query", array("Joe's Widgets")); $res2 = pg_get_result($dbconn); }
// Execute the same prepared query, this time with a different parameter if (!pg_connection_busy($dbconn)) { pg_send_execute($dbconn, "my_query", array("Clothes Clothes Clothes")); $res3 = pg_get_result($dbconn); }
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