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Re: use of array_key_exists() to prevent duplicates? [message #173041 is a reply to message #173040]

Fri, 18 March 2011 16:46

Captain Paralytic
Messages: 204
Registered: September 2010

Karma:

Senior Member

On Mar 18, 4:34 pm, William Gill <nos...@domain.invalid> wrote:
> On 3/18/2011 12:15 PM, Captain Paralytic wrote:> Well actually I'm not clear from your OP what you really need. If the
>> source program produces duplicates of old records as well as new ones,
>> then provided that the new records come after the old ones, I would
>> assume that the one you wanted to end up with was the latest one and
>> so you would not want to use either array_key_exists() or isset().
>
> To answer your question, not mentioned in the OP, but mentioned
> subsequently, edits to the memo field should be maintained.

I did read that, but it doesn't say whether the edit record is the
first one or the last one. It is this that decides what one you wish
to keep.

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[Message index]

		use of array_key_exists() to prevent duplicates? By: William Gill on Thu, 17 March 2011 15:35
		Re: use of array_key_exists() to prevent duplicates? By: Captain Paralytic on Thu, 17 March 2011 15:58
		Re: use of array_key_exists() to prevent duplicates? By: William Gill on Thu, 17 March 2011 17:09
		Re: use of array_key_exists() to prevent duplicates? By: Captain Paralytic on Fri, 18 March 2011 10:05
		Re: use of array_key_exists() to prevent duplicates? By: William Gill on Fri, 18 March 2011 15:06
		Re: use of array_key_exists() to prevent duplicates? By: Captain Paralytic on Fri, 18 March 2011 16:15
		Re: use of array_key_exists() to prevent duplicates? By: William Gill on Fri, 18 March 2011 16:34
		Re: use of array_key_exists() to prevent duplicates? By: Captain Paralytic on Fri, 18 March 2011 16:46
		Re: use of array_key_exists() to prevent duplicates? By: William Gill on Fri, 18 March 2011 17:17

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