This map loads every .gpx file in a given folder, using the following PHP code:

    gv_options.onload_function = 'GV_Autozoom()';
    gv_options.dynamic_data = [];

<?php
    $gpx_directory = 'tracks';
    $file_list = scandir($gpx_directory);
    foreach ($file_list as $file) {
        if (preg_match('/\.gpx$/',$file)) {
            $gpx_url = $gpx_directory.'/'.$file;
?>

    gv_options.dynamic_data.push({
        url:'<?=$gpx_url?>', autozoom:false
    });

<?php
        }
    }
?>
				

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