(PECL tokyo_tyrant >= 0.1.0)
TokyoTyrant::putKeep — Puts a record
   Puts a key-value pair into the database or multiple key-value pairs. If keys is
   string then the second parameter value defines the value. 
   The second parameter is mandatory if keys is a string. If the key already 
   exists this method throws an exception indicating that the records exists.
  
This method returns a reference to the current object and throws TokyoTyrantException on failure.
Örnek 1 tokyotyrant::putKeep() example
<?php
/* Connect to a database on default port */
$tt = new TokyoTyrant("localhost");
/* Create a new key */
$tt->put("key", "value");
try {
    $tt->putKeep("key", "new value");
} catch (TokyoTyrantException $e) {
    if ($e->getCode() === TokyoTyrant::TTE_KEEP) {
        echo "Existing record! Not modified\n";
    } else {
        echo "Error: " , $e->getMessage() , "\n"; 
    }
}
echo $tt->get("key");
?>
Yukarıdaki örneğin çıktısı:
Existing record! Not modified value