# Checks the validity of current item

TokyoTyrantQuery::setLimit
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TokyoTyrantQuery
PHP Manual

# TokyoTyrantQuery::valid

(PECL tokyo_tyrant >= 0.1.0)

TokyoTyrantQuery::valid — Checks the validity of current item

### Beschreibung

public bool TokyoTyrantQuery::valid ( void )

Checks if the current item is valid. Part of the Iterator interface

### Parameter-Liste

Diese Funktion hat keine Parameter.

### Rückgabewerte

Returns `TRUE` if the current item is valid and `FALSE` if not.

### Beispiele

Beispiel #1 TokyoTyrantQuery iterator 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" => "foobar 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 */
$query->addCond("column2", TokyoTyrant::RDBQC_STROR, "something");
/* Iterate the results */
foreach ($query as $key => $value) {
echo "pk: $key, columns: ", count($value) ,"\n";
}
?>`

Das oben gezeigte Beispiel erzeugt eine ähnliche Ausgabe wie:

    pk: 1, columns: 2
    pk: 4, columns: 2

### Siehe auch

- TokyoTyrantQuery::addCond - Adds a condition to the query

TokyoTyrantQuery::setLimit
Dateisystemrelevante Erweiterungen
TokyoTyrantQuery
PHP Manual