this is a function that calculates the difference between two times with milliseconds. i built it for a racing website to compare drivers.
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function find_time_diff($t1, $t2, $ms=false) { $time1_pcs = explode(":", $t1); $time1_pcs2 = explode(".", $time1_pcs[2]); $time2_pcs = explode(":", $t2); $time2_pcs2 = explode(".", $time2_pcs[2]); $time1_all_ms = ($time1_pcs[0] * 60 * 60 * 1000) + ($time1_pcs[1] * 60 * 1000) + ($time1_pcs2[0] * 1000) + $time1_pcs2[1]; $time2_all_ms = ($time2_pcs[0] * 60 * 60 * 1000) + ($time2_pcs[1] * 60 * 1000) + ($time2_pcs2[0] * 1000) + $time2_pcs2[1]; $time1_all_ms_dif = $time2_all_ms - $time1_all_ms; if($ms){ return $time1_all_ms_dif; } else{ $dif_ms = $time1_all_ms_dif % 1000; $time1_all_ms_dif = floor($time1_all_ms_dif / 1000); $dif_s = $time1_all_ms_dif % 60; $time1_all_ms_dif = floor($time1_all_ms_dif / 60); $dif_m = $time1_all_ms_dif % 60; $time1_all_ms_dif = floor($time1_all_ms_dif / 60); $dif_h = $time1_all_ms_dif % 60; return $dif_h.':'.$dif_m.':'.$dif_s.'.'.$dif_ms; } } |