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<?php $value = "ACD0DSAS"; //I expect this to be unpacked in one 8 byte number $higher = unpack("N", substr($value, 0, 4)); $lower = unpack("N", substr($value, 4, 4)); echo ($higher[1] << 32) + $lower[1]; // 4702677410000355667
Output for git.master, git.master_jit, rfc.property-hooks
4702677410000355667

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