TokyoTyrantQuery::count

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TokyoTyrantQuery::count — Counts records

说明

public TokyoTyrantQuery::count ( void ) : 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