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>array_splice</H1
><DIV
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NAME="AEN6621"
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><P
> (PHP 4 , PHP 5)</P
>array_splice --
Remove a portion of the array and replace it with something
else
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CLASS="refsect1"
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><H2
>Description</H2
>array <B
CLASS="methodname"
>array_splice</B
> ( array input, int offset [, int length [, array replacement]])<BR
></BR
><P
> <B
CLASS="function"
>array_splice()</B
> removes the elements designated
by <VAR
CLASS="parameter"
>offset</VAR
> and
<VAR
CLASS="parameter"
>length</VAR
> from the
<VAR
CLASS="parameter"
>input</VAR
> array, and replaces them with the
elements of the <VAR
CLASS="parameter"
>replacement</VAR
> array, if
supplied. It returns an array containing the extracted elements.
</P
><P
> If <VAR
CLASS="parameter"
>offset</VAR
> is positive then the start of
removed portion is at that offset from the beginning of the
<VAR
CLASS="parameter"
>input</VAR
> array. If
<VAR
CLASS="parameter"
>offset</VAR
> is negative then it starts that far
from the end of the <VAR
CLASS="parameter"
>input</VAR
> array.
</P
><P
> If <VAR
CLASS="parameter"
>length</VAR
> is omitted, removes everything
from <VAR
CLASS="parameter"
>offset</VAR
> to the end of the array. If
<VAR
CLASS="parameter"
>length</VAR
> is specified and is positive, then
that many elements will be removed. If
<VAR
CLASS="parameter"
>length</VAR
> is specified and is negative then
the end of the removed portion will be that many elements from
the end of the array. Tip: to remove everything from
<VAR
CLASS="parameter"
>offset</VAR
> to the end of the array when
<VAR
CLASS="parameter"
>replacement</VAR
> is also specified, use
<VAR
CLASS="literal"
>count($input)</VAR
> for
<VAR
CLASS="parameter"
>length</VAR
>.
</P
><P
> If <VAR
CLASS="parameter"
>replacement</VAR
> array is specified, then
the removed elements are replaced with elements from this array.
If <VAR
CLASS="parameter"
>offset</VAR
> and
<VAR
CLASS="parameter"
>length</VAR
> are such that nothing is removed,
then the elements from the <VAR
CLASS="parameter"
>replacement</VAR
>
array are inserted in the place specified by the
<VAR
CLASS="parameter"
>offset</VAR
>. Tip: if the replacement is just
one element it is not necessary to put <VAR
CLASS="literal"
>array()</VAR
>
around it, unless the element is an array itself.
</P
><P
> The following equivalences hold:
<TABLE
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><TR
><TD
><code><font color="#000000">
array_push ($input, $x, $y) array_splice ($input, count ($input), 0,<br /> array ($x, $y))<br />array_pop ($input) array_splice ($input, -1)<br />array_shift ($input) array_splice ($input, 0, 1)<br />array_unshift ($input, $x, $y) array_splice ($input, 0, 0, array ($x, $y))<br />$a[$x] = $y array_splice ($input, $x, 1, $y)</font>
</code></TD
></TR
></TABLE
>
</P
><P
> Returns the array consisting of removed elements.
</P
><P
> <TABLE
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><TR
><TD
><DIV
CLASS="example"
><A
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></A
><P
><B
>Exemplu 1. <B
CLASS="function"
>array_splice()</B
> examples</B
></P
><TABLE
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><TD
><code><font color="#000000">
$input = array ("red", "green", "blue", "yellow");<br />array_splice ($input, 2);<br />// $input is now array ("red", "green")<br /><br />$input = array ("red", "green", "blue", "yellow");<br />array_splice ($input, 1, -1);<br />// $input is now array ("red", "yellow")<br /><br />$input = array ("red", "green", "blue", "yellow");<br />array_splice ($input, 1, count($input), "orange");<br />// $input is now array ("red", "orange")<br /><br />$input = array ("red", "green", "blue", "yellow");<br />array_splice ($input, -1, 1, array("black", "maroon"));<br />// $input is now array ("red", "green",<br />// "blue", "black", "maroon")</font>
</code></TD
></TR
></TABLE
></DIV
></TD
></TR
></TABLE
>
</P
><P
> See also <A
HREF="function.array-slice.html"
><B
CLASS="function"
>array_slice()</B
></A
>.
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