php - regepx - odd whitespaces in string -

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i'm doing regexp on strings , in pattern match whitespaces \s

but in strings experience strange spaces.. when converted hex a0

how convert strange spaces normal space can detected regexp , both , \s?

when string presented utf8 a0 chars represented �

input in hex

a03535a03832a03834a03135a02da053452e6e723aa0444ba03132a03638a03336a03933

input string

 55 82 84 15 - se.nr: dk 12 68 36 93

a0 representation of   - non-breaking space.

you can match with:

[\s\xa0]

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