php3-doc/function.array-unique.html at gh-pages · salathe/php3-doc · GitHub

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<HTML
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>array_unique</TITLE
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><H1
><A
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>array_unique</A
></H1
><DIV
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><A
NAME="AEN4975"
></A
><P
>    (PHP4 &#62;= 4.0.1)</P
>array_unique&nbsp;--&nbsp;Removes duplicate values from an array</DIV
><DIV
CLASS="refsect1"
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><H2
>Description</H2
><DIV
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><A
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></A
><P
></P
><P
><CODE
><CODE
CLASS="FUNCDEF"
>array <B
CLASS="function"
>array_unique</B
></CODE
> (array array)</CODE
></P
><P
></P
></DIV
><P
>&#13;     <B
CLASS="function"
>Array_unique()</B
> takes input
     <TT
CLASS="parameter"
><I
>array</I
></TT
> and returns a new array
     without duplicate values.
     Note that keys are preserved.
    </P
><P
>&#13;     <TABLE
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><A
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><P
><B
>Example 1. <B
CLASS="function"
>Array_unique()</B
> example</B
></P
><TABLE
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WIDTH="100%"
><TR
><TD
><PRE
CLASS="programlisting"
>&#13;$input = array ("a" =&#62; "green", "red", "b" =&#62; "green", "blue", "red");
$result = array_unique ($input);
      </PRE
></TD
></TR
></TABLE
></DIV
></TD
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>
    </P
><P
>&#13;     This makes <TT
CLASS="varname"
>$result</TT
> have <TT
CLASS="literal"
>array ("a" =&#62;
     "green", "red", "blue");</TT
>.
    </P
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