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<HTML
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>similar_text</TITLE
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> (PHP3 >= 3.0.7, PHP4 >= 4.0b2)</P
>similar_text --
Calculate the similarity between two strings
</DIV
><DIV
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><H2
>Description</H2
><DIV
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><P
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><P
><CODE
><CODE
CLASS="FUNCDEF"
>int <B
CLASS="function"
>similar_text</B
></CODE
> (string first, string second [, double
percent])</CODE
></P
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><P
> This calculates the similarity between two strings as described
in Oliver [1993]. Note that this implementation does not use a
stack as in Oliver's pseudo code, but recursive calls which may
or may not speed up the whole process. Note also that the
complexity of this algorithm is O(N**3) where N is the length of
the longest string.
</P
><P
> By passing a reference as third argument,
<B
CLASS="function"
>similar_text()</B
> will calculate the similarity
in percent for you. It returns the number of matching chars in
both strings.
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