php - Loop through an array of integers and break every 1000 -

i working activity tracking files. want browse through gpx file , every 1000m milestone. device not record gps track right @ 1000m, 2000m, etc, cannot use $distance % 1000. want detect each time 1000m milestone has passed, performing action @ milestone after.

here example of distance tracked:

0   3   28  …   997   1003   1027   …   1998   2006 …   2989   3001 

and on. in example, i'd need perform action when 1003 has been reached, 2006 , 3001.

how can trigger event every time data passes multiple of 1000?

if data coming in string explode string ever delimiter , loop it.

<?php $string = "0 3 28 36 42 66 73 80 103 125 997 1003 1027 2006 3001"; $data= explode( ' ', $string );  $multiple = 1; foreach( $data $value ) {   if( (int)$value > ( 1000 * $multiple ) )    {     // passed 1000 marker     echo $value."\n";     $multiple++;   } } 

output:

1003 2006 3001