SphinxClient::setGeoAnchor()

(PECL sphinx >= 0.1.0)

Set anchor point for a geosphere distance calculations

说明

publicSphinxClient::setGeoAnchor(string $attrlat,string $attrlong,float $latitude,float $longitude): bool

Sets anchor point for a geosphere distance(geodistance)calculations and enables them.

Once an anchor point is set, you can use magic "@geodist" attribute name in your filters and/or sorting expressions.

参数

$attrlat

Name of a latitude attribute.

$attrlong

Name of a longitude attribute.

$latitude

Anchor latitude in radians.

$longitude

Anchor longitude in radians.

返回值

成功时返回TRUE，或者在失败时返回FALSE。

参见

• SphinxClient::setFilterFloatRange
• SphinxClient::setFilterRange
• SphinxClient::setFilter
• SphinxClient::resetFilters

For this to work, attrlat and attrlng need to be in lower case otherwise you will get :
"unknown latitude attribute ''"

When sorting on @geodist you have to use SetSortMode with SPH_SORT_EXTENDED, like below, if SPH_SORT_ATTR_ASC does not seem to work.
$sphinx->SetSortMode(SPH_SORT_EXTENDED, '@geodist ASC');