generate xdebug coverage

generate-xdebug-coverage.php

<?php

$xdebug_coverage_log_file_prefix = "/tmp/xdebug/v2-coverageLog-";
xdebug_start_code_coverage();
register_shutdown_function('coverageLog');
$xdebug_coverage_log_file = $xdebug_coverage_log_file_prefix . date('Ymd') . '.log';

function coverageLog() {
    global $xdebug_coverage_log_file;
    $logs = xdebug_get_code_coverage();

    $mem = new Memcache(); 
    $mem->connect('127.0.0.1', 11211) or die ("Could not connect memcache");
    $uri = $mem->get($_SERVER['REQUEST_URI']);
    if( empty($uri) ) {
        $log_pre = "#{$_SERVER['REQUEST_URI']}\n";
        $tmp = array();
        foreach($logs as $filepath => $coverageLines) {
            $tmp[] = "\t$filepath|" . implode(',', xdebug_merge_next(array_keys($coverageLines)));
        }
        sort($tmp);
        file_put_contents($xdebug_coverage_log_file, $log_pre . join("\n", $tmp) . "\n", FILE_APPEND | LOCK_EX);
        $mem->set($_SERVER['REQUEST_URI'], 1, false, 86400);
    }
    
    $mem->close();
}

function xdebug_merge_next($array) {
    $rt = array();
    for($i = 0; $i < count($array); $i++) {
        $current = $array[$i];
        $rt[] = $current;
        $next = $current;
        if(($next + 1) == $array[$i + 1]) {
            for($j = $i + 1; $j <= count($array); $j++) {
                $next += 1;
                if($next != $array[$j]) {
                    $i = $j - 1;
                    break;
                }
            }
            $rt[] = '-';
            $rt[] = $next - 1;
        }
    }
    return $rt;
}