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wp_http_supports ( $capabilities = array(), $url = null )
wp_http_supports: 这个函数用来检查服务器是否支持某种HTTP传输。它接受一个参数,即传输的名称,如果该传输被支持,则返回 true,否则返回 false。
确定是否有一个可以处理此请求的HTTP传输。
function wp_http_supports( $capabilities = array(), $url = null ) { $http = _wp_http_get_object(); $capabilities = wp_parse_args( $capabilities ); $count = count( $capabilities ); // If we have a numeric $capabilities array, spoof a wp_remote_request() associative $args array. if ( $count && count( array_filter( array_keys( $capabilities ), 'is_numeric' ) ) == $count ) { $capabilities = array_combine( array_values( $capabilities ), array_fill( 0, $count, true ) ); } if ( $url && ! isset( $capabilities['ssl'] ) ) { $scheme = parse_url( $url, PHP_URL_SCHEME ); if ( 'https' === $scheme || 'ssl' === $scheme ) { $capabilities['ssl'] = true; } } return (bool) $http->_get_first_available_transport( $capabilities ); }