Convert ps etime to seconds in PHP - [[dd-]hh:]mm:ss

posix2seconds.php

/* coverts process durations output from the ps linux command in the [[dd-]hh:]mm:ss format to seconds
*  useful when you need to find long running processes in PHP
*/

function posixTimeToSeconds($str) {
    $parts = explode(':', $str);
    $c = count($parts);
    if ($c == 2) {
        return (int)$parts[0] * 60 + (int)$parts[1];
    } else if ($c == 3) {
        if (strpos($parts[0], '-') !== false) {
            $daysHours = explode('-', $parts[0]);
            $parts[0] = $daysHours[0] * 24 + $daysHours[1];
        }
        return (int)$parts[0] * 3600 + +(int)$parts[1] * 60 + (int)$parts[2];
    } else {
        return 0;
    }
}


// Tests
$input = ['21-01:74:01', '3-00:34:41', '00:00', '01:01', '10:10:10', 'test'];
$output = [
    (21 * 24 + 1) * 3600 + 74 * 60 + 1,
    3 * 24 * 3600 + 34 * 60 + 41,
    0,
    61,
    10 * 3600 + 10 * 60 + 10,
    0
];

for ($i = 0; $i < count($input); $i++) {
    if (posixTimeToSeconds($input[$i]) == $output[$i]) {
        echo 'Test OK ';
    } else {
        echo 'Test Failed ';
    }
    echo '(' . $input[$i] . ')' . PHP_EOL;
}