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prevention of duplication on an array


gabrielkolbe

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That's the most efficient way to achieve your required results, so that's what I provided. You didn't specify.

array_unique will probably get you what you want, but I'm going to assume that's probably to simple for what you're after, so the only thing left is to copy used array values to a temp array and then use in_array to check that for "used" array values.
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