php - cron after every 15 sec -

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i cannot set cron time less 1 minute on dedicated server. need run every 15 seconds because calls betfair api , calculations highly time dependent. please advise.

cron lets run things fast once minute.

what do 15 second timings inside script.

  • execute parent script once minute.
  • execute children scripts every 15 seconds within script before exists , new cycle begins.

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