PHPCon Poland 2024


(PECL fann >= 1.0.0)

fann_get_activation_functionReturns the activation function


fann_get_activation_function(resource $ann, int $layer, int $neuron): int

Get the activation function for neuron number neuron in layer number layer, counting the input layer as layer 0.

It is not possible to get activation functions for the neurons in the input layer.

The return value is one of the activation functions constants.

Liste de paramètres


Ressource de réseau de neurones.


Layer number.


Neuron number.

Valeurs de retour

Learning functions constant or -1 if the neuron is not defined in the neural network, or false on error.

Voir aussi

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