1.2.1511. ext/fann¶

Extension FANN : Fast Artificial Neural Network.

PHP binding for FANN library which implements multi-layer artificial neural networks with support for both fully connected and sparsely connected networks.

<?php
$num_input = 2;
$num_output = 1;
$num_layers = 3;
$num_neurons_hidden = 3;
$desired_error = 0.001;
$max_epochs = 500000;
$epochs_between_reports = 1000;

$ann = fann_create_standard($num_layers, $num_input, $num_neurons_hidden, $num_output);

if ($ann) {
    fann_set_activation_function_hidden($ann, FANN_SIGMOID_SYMMETRIC);
    fann_set_activation_function_output($ann, FANN_SIGMOID_SYMMETRIC);

    $filename = dirname(__FILE__) . '/xor.data';
    if (fann_train_on_file($ann, $filename, $max_epochs, $epochs_between_reports, $desired_error))
        fann_save($ann, dirname(__FILE__) . '/xor_float.net');

    fann_destroy($ann);
}
?>

See also extension FANN, PHP-ML, Rubix ML and lib FANN.

1.2.1511.1. Connex PHP features¶

machine-learning

1.2.1511.1.1. Specs¶

Short name	Extensions/Extfann
Rulesets	All, Appinfo, CE, Changed Behavior
Exakat since	0.8.4
PHP Version	All
Severity	Major
Time To Fix	Slow (1 hour)
Precision	High
Available in	Entreprise Edition, Community Edition, Exakat Cloud