setPoolSize() public method

Set the size for future connection pools.
See link: http://php.net/manual/en/mongo.setpoolsize.php
Deprecation: Relying on this feature is highly discouraged. Please use MongoPool::setSize() instead.
public setPoolSize ( $size ) : boolean
$size

The max number of connections future pools will be able to create. Negative numbers mean that the pool will spawn an infinite number of connections.
return boolean Returns the former value of pool size.
Mongo Class Documentation
Beispiel #1
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    public function testPoolSize() {
        $this->assertEquals(Mongo::getPoolSize(), -1);
        Mongo::setPoolSize(4.1);
        $this->assertEquals(Mongo::getPoolSize(), 4);
        Mongo::setPoolSize(0);

        $thrown = false;
        try {
            $m = new Mongo("mongodb://localhost:20000");
        }
        catch (MongoException $e) {
            $this->assertStringEndsWith("pool", $e->getMessage());
            $thrown = true;
        }
        $this->assertTrue($thrown);

        Mongo::setPoolSize(-1);
    }