TokyoTyrantQuery::hint
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TokyoTyrantQuery::hint — Get the hint string of the query
說明
public string TokyoTyrantQuery::hint
( void
)
Get the hint string of the query. The hint string contains information about an executed query and it could be compared to for example MySQL EXPLAIN statement.
參數
此函式沒有參數。
回傳值
This method always returns a string
範例
Example #1 TokyoTyrantQuery::hint example
<?php
$tt = new TokyoTyrantTable("localhost", 1979);
$tt->vanish();
for ($i = 0; $i < 11; $i++) {
$tt->put(null, array('a_col' => 'a' . $i, 'b_col' => 'b' . $i));
}
$query = $tt->getQuery();
$query->addCond('a_col', TokyoTyrant::RDBQC_STRBW, 'a');
$query->search();
var_dump($query->hint());
?>
上例的輸出類似於：
string(72) " scanning the whole table result set size: 11 leaving the natural order "
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