SolrObject
PHP Manual

SolrObject::offsetExists

(PECL solr >= 0.9.2)

SolrObject::offsetExistsChecks if the property exists

说明

public bool SolrObject::offsetExists ( string $property_name )

Checks if the property exists. This is used when the object is treated as an array.

参数

property_name

The name of the property.

返回值

成功时返回 TRUE, 或者在失败时返回 FALSE


SolrObject
PHP Manual