\'wp_remote_post\' 是您正在搜索的函数。

$response = wp_remote_post( $url, array(
    \'method\' => \'POST\',
    \'timeout\' => 45,
    \'redirection\' => 5,
    \'httpversion\' => \'1.0\',
    \'blocking\' => true,
    \'headers\' => array(),
    \'body\' => array( \'param1\' => \'value1\' ),
    \'cookies\' => array()
    )
);

if ( is_wp_error( $response ) ) {
   $error_message = $response->get_error_message();
   echo "Something went wrong: $error_message";
} else {
   echo \'Response:<pre>\';
   print_r( $response );
   echo \'</pre>\';
}