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>array_intersect_assoc</H1
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><P
>    (PHP 4 &#62;= 4.3.0)</P
>array_intersect_assoc&nbsp;--&nbsp;Computes the intersection of arrays with additional index check</DIV
><DIV
CLASS="refsect1"
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NAME="AEN4942"
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><H2
>Description</H2
>array <B
CLASS="methodname"
>array_intersect_assoc</B
> ( array array1, array array2 [, array ...])<BR
></BR
><P
>&#13;     <B
CLASS="function"
>array_intersect_assoc()</B
> returns an array
     containing all the values of <TT
CLASS="parameter"
><I
>array1</I
></TT
>
     that are present in all the arguments. Note that the keys are used in
     the comparison unlike in <A
HREF="function.array-intersect.html"
><B
CLASS="function"
>array_intersect()</B
></A
>.
    </P
><P
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><P
><B
>Ejemplo 1. <B
CLASS="function"
>array_intersect_assoc()</B
> example</B
></P
><TABLE
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><PRE
CLASS="php"
>&#60;?php
$array1 = array ("a" =&#62; "green", "b" =&#62; "brown", "c" =&#62; "blue", "red");
$array2 = array ("a" =&#62; "green", "yellow", "red");
$result_array = array_intersect_assoc ($array1, $array2);

/* $result_array will look like:

Array
(
    [a] =&#62; green
)

*/
?&#62;</PRE
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>
    </P
><P
>&#13;     In our example you see that only the pair <TT
CLASS="literal"
>"a" =&#62;
     "green"</TT
> is present in both arrays and thus is returned. 
     The value <TT
CLASS="literal"
>"red"</TT
> is not returned because in 
     <TT
CLASS="varname"
>$array1</TT
> it's key is <TT
CLASS="literal"
>2</TT
> while
     the key of "red" in <TT
CLASS="varname"
>$array2</TT
> it is 
     <TT
CLASS="literal"
>1</TT
>.
    </P
><P
>&#13;     The two values from the <TT
CLASS="literal"
>key =&#62; value</TT
> pairs are
     considered equal only if 
     <TT
CLASS="literal"
>(string) $elem1 === (string) $elem2 </TT
>. In otherwords
     a strict type check is executed so the string representation must be
     the same. 
     
    </P
><P
>&#13;     See also <A
HREF="function.array-intersect.html"
><B
CLASS="function"
>array_intersect()</B
></A
>,
     <A
HREF="function.array-diff.html"
><B
CLASS="function"
>array_diff()</B
></A
> and
     <A
HREF="function.array-diff-assoc.html"
><B
CLASS="function"
>array_diff_assoc()</B
></A
>.
    </P
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