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<?php $data = "The time is 1020 and the time is 1340 and 1550"; $data = preg_replace('/\b(\d{2})(\d{2})\b/', "$1:$2", $data); echo $data;
Output for git.master, git.master_jit, rfc.property-hooks
The time is 10:20 and the time is 13:40 and 15:50

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