train_ocr.php

<?php
set_time_limit ( 300 ); // do not run longer than 5 minutes (adjust as needed)

$num_input = 160;
$num_output = 1;
$num_layers = 3;
$num_neurons_hidden = 107;
$desired_error = 0.00001;
$max_epochs = 5000000;
$epochs_between_reports = 10;

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

if ($ocr_ann) {
    echo 'Training OCR... '; 
    fann_set_activation_function_hidden($ocr_ann, FANN_SIGMOID_SYMMETRIC);
    fann_set_activation_function_output($ocr_ann, FANN_SIGMOID_SYMMETRIC);

    $filename = dirname(__FILE__) . "/ocr.data";
    if (fann_train_on_file($ocr_ann, $filename, $max_epochs, $epochs_between_reports, $desired_error))
        fann_save($ocr_ann, dirname(__FILE__) . "/ocr_float.net");

    fann_destroy($ocr_ann);
}

echo 'All Done! Now run <a href="test_ocr.php">Test OCR</a><br>' . PHP_EOL;
?>