Php/docs/function.pg-send-query-params
pg_send_query_params
(PHP 5 >= 5.1.0, PHP 7)
pg_send_query_params — Submits a command and separate parameters to the server without waiting for the result(s)
说明
pg_send_query_params
( resource $connection
, string $query
, array $params
) : bool
Submits a command and separate parameters to the server without waiting for the result(s).
This is equivalent to pg_send_query() except that query
parameters can be specified separately from the
query string. The function's parameters are
handled identically to pg_query_params(). Like
pg_query_params(), it will not work on pre-7.4 PostgreSQL
connections, and it allows only one command in the query string.
参数
connection- PostgreSQL database connection resource.
query- The parameterized 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.
params- An array of parameter values to substitute for the $1, $2, etc. placeholders in the original prepared query string. The number of elements in the array must match the number of placeholders.
范例
Example #1 Using pg_send_query_params()
<?php $dbconn = pg_connect("dbname=publisher") or die("Could not connect"); // Using parameters. Note that it is not necessary to quote or escape // the parameter. pg_send_query_params($dbconn, 'select count(*) from authors where city = $1', array('Perth')); // Compare against basic pg_send_query usage $str = pg_escape_string('Perth'); pg_send_query($dbconn, "select count(*) from authors where city = '${str}'");?>
