Php/docs/mongoid.tostring
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MongoId::__toString
(PECL mongo >= 0.8.0)
MongoId::__toString — 返回该 id 十六进制的表示形式
This extension that defines this method
is deprecated. Instead, the MongoDB extension should be used. Alternatives to this method include:
说明
public MongoId::__toString ( ) : string
参数
此函数没有参数。
返回值
该 id。
范例
Example #1 MongoId::__toString() 例子
<?php$m = new MongoClient();$collection = $m->selectDB("foo")->selectCollection("bar");$collection->insert(array( "x" => "y" ));$collection->insert(array( "x" => "y" ));$cursor = $collection->find();$r1 = $cursor->next();$r2 = $cursor->next();echo $r1["_id"] . "\n";echo $r2["_id"] . "\n";?>
以上例程的输出类似于:
49a7011a05c677b9a916612a 49a702d5450046d3d515d10d