profiler-docker/prepend_uprofiler.php

<?php

register_shutdown_function(
    function () {
        register_shutdown_function(function () {
            echo "Uprofiler: ", phpversion("uprofiler"), ", PHP: ", phpversion(), "\n";
            $data = uprofiler_disable();
            echo 'Nodes in report: ' . count($data) . "\n";
            $name = getenv('REPORT');
            if (empty($name)) {
                $name = 'xhprof_report.' . microtime(1) . '.serialized';
            }
            echo 'Saving report to ' . $name, "\n";

            file_put_contents('/code/' . $name,
                '.json' === substr($name, -5) ? json_encode($data) : serialize($data));

            if (getenv('SVG')) {
                include_once "/utils/callgraph_utils.php";
                include_once "/utils/xhprof_lib.php";
                include_once "/utils/xhprof_runs.php";

                echo "Generating dot script\n";
                $threshold = 0;
                if (count($data) > 1000) {
                    $threshold = 0.001;
                }
                $script = xhprof_generate_dot_script($data, $threshold, null, null, null, null);
                echo "Generating dot image\n";
                $content = xhprof_generate_image_by_dot($script, 'svg');
                echo 'Saving graph to ' . $name . '.svg', "\n";
                file_put_contents('/code/' . $name . '.svg',
                    $content);
            }
        });
    }
);

uprofiler_enable(UPROFILER_FLAGS_MEMORY | UPROFILER_FLAGS_CPU);