Php/docs/tokyotyrant.putkeep
TokyoTyrant::putKeep
(PECL tokyo_tyrant >= 0.1.0)
TokyoTyrant::putKeep — Puts a record
说明
public TokyoTyrant::putKeep
( mixed $keys
[, string $value
] ) : TokyoTyrant
Puts a key-value pair into the database or multiple key-value pairs. If keys is
string then the second parameter value defines the value.
The second parameter is mandatory if keys is a string. If the key already
exists this method throws an exception indicating that the records exists.
参数
keys- A string key or an array of key-value pairs
value- The string value
返回值
This method returns a reference to the current object and throws TokyoTyrantException on failure.
范例
Example #1 tokyotyrant::putKeep() example
<?php/* Connect to a database on default port */$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");?>
以上例程会输出：
Existing record! Not modified value
