Php/docs/tokyotyrantquery.count
TokyoTyrantQuery::count
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TokyoTyrantQuery::count — Counts records
说明
public TokyoTyrantQuery::count ( ) : int
Returns a count of how many records a query returns.
参数
此函数没有参数。
返回值
Returns a count of matching rows and throws TokyoTyrantException on error
范例
Example #1 TokyoTyrantQuery::count() example
<?php/* Connect to a table database */$tt = new TokyoTyrantTable("localhost", 1979);/* Add rows */$tt->put(null, array("column1" => "some data", "column2" => "something here"));$tt->put(null, array("column1" => "more data", "column2" => "best data this far"));$tt->put(null, array("column1" => "again data", "column3" => "not here"));$tt->put(null, array("column45" => "random data", "column2" => "something along the lines"));$tt->put(null, array("column21" => "test data", "column2" => "generating.."));$tt->put(null, array("column1" => "foobar data", "column2" => "value here"));/* Get a new query object */$query = $tt->getQuery();/* Add a search condition */$query->addCond("column2", TokyoTyrant::RDBQC_STROR, "something");/* Count the results */var_dump($query->count());?>
以上例程会输出：
int(2)
参见
- TokyoTyrantQuery::out() - Removes records based on query
- TokyoTyrantQuery::search() - Searches records
- TokyoTyrantQuery::metaSearch() - Retrieve records with multiple queries
