©
本文档使用
php.cn手册 发布
(PHP 5 >= 5.1.0)
pg_send_query_params — Submits a command and separate parameters to the server without waiting for the result(s).
$connection
, string $query
, array $params
)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.
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.
成功时返回 TRUE
, 或者在失败时返回 FALSE
。
Use pg_get_result() to determine the query result.
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 } '" );
?>