array_pad(3) [php man page]

ARRAY_PAD(3)								 1							      ARRAY_PAD(3)

array_pad - Pad array to the specified length with a value

SYNOPSIS

       array array_pad (array  $array, int  $size, mixed  $value)

DESCRIPTION

       array_pad(3)  returns  a  copy  of  the	$array padded to size specified by $size with value $value. If $size is positive then the array is
       padded on the right, if it's negative then on the left. If the absolute value of $size is less than or equal to the length  of  the  $array
       then no padding takes place. It is possible to add at most 1048576 elements at a time.

PARAMETERS

	      o $array
		- Initial array of values to pad.

	      o $size
		- New size of the array.

	      o $value
		- Value to pad if $array is less than $size.

RETURN VALUES

	Returns  a  copy  of  the $array padded to size specified by $size with value $value. If $size is positive then the array is padded on the
       right, if it's negative then on the left. If the absolute value of $size is less than or equal to the length of the $array then no  padding
       takes place.

EXAMPLES

       Example #1

	      array_pad(3) example

	      <?php
	      $input = array(12, 10, 9);

	      $result = array_pad($input, 5, 0);
	      // result is array(12, 10, 9, 0, 0)

	      $result = array_pad($input, -7, -1);
	      // result is array(-1, -1, -1, -1, 12, 10, 9)

	      $result = array_pad($input, 2, "noop");
	      // not padded
	      ?>

SEE ALSO

       array_fill(3), range(3).

PHP Documentation Group 													      ARRAY_PAD(3)

ARRAY_SPLICE(3) 							 1							   ARRAY_SPLICE(3)

array_splice - Remove a portion of the array and replace it with something else

SYNOPSIS

       array array_splice (array  &$input, int	$offset, [int  $length], [mixed  $replacement = array()])

DESCRIPTION

	Removes  the  elements	designated  by	$offset and $length from the $input array, and replaces them with the elements of the $replacement
       array, if supplied.

	Note that numeric keys in $input are not preserved.

       Note

	       If $replacement is not an array, it will be typecast to one (i.e. (array) $parameter). This may result in unexpected behavior  when
	      using an object or NULL$replacement.

PARAMETERS

	      o $input
		- The input array.

	      o $offset
		- If $offset is positive then the start of removed portion is at that offset from the beginning of the $input array. If $offset is
		negative then it starts that far from the end of the $input array.

	      o $length
		- If $length is omitted, removes everything from $offset to the end of the array. If $length is specified and  is  positive,  then
		that  many elements will be removed. If $length is specified and is negative then the end of the removed portion will be that many
		elements from the end of the array. If $length is specified and is zero, no elements will be removed. Tip:  to	remove	everything
		from $offset to the end of the array when $replacement is also specified, use count($input) for $length.

	      o $replacement
		-  If  $replacement  array  is	specified,  then  the removed elements are replaced with elements from this array.  If $offset and
		$length are such that nothing is removed, then the elements from the $replacement array are inserted in the place specified by the
		$offset.  Note	that  keys in replacement array are not preserved.  If $replacement is just one element it is not necessary to put
		array() around it, unless the element is an array itself, an object or NULL.

RETURN VALUES

	Returns the array consisting of the extracted elements.

EXAMPLES

       Example #1

	      array_splice(3) examples

	      <?php
	      $input = array("red", "green", "blue", "yellow");
	      array_splice($input, 2);
	      // $input is now array("red", "green")

	      $input = array("red", "green", "blue", "yellow");
	      array_splice($input, 1, -1);
	      // $input is now array("red", "yellow")

	      $input = array("red", "green", "blue", "yellow");
	      array_splice($input, 1, count($input), "orange");
	      // $input is now array("red", "orange")

	      $input = array("red", "green", "blue", "yellow");
	      array_splice($input, -1, 1, array("black", "maroon"));
	      // $input is now array("red", "green",
	      //	  "blue", "black", "maroon")

	      $input = array("red", "green", "blue", "yellow");
	      array_splice($input, 3, 0, "purple");
	      // $input is now array("red", "green",
	      //	  "blue", "purple", "yellow");
	      ?>

       Example #2

	      array_splice(3) examples

	       The following statements change the values of $input the same way:

	      <?php
	      array_push($input, $x, $y);
	      array_splice($input, count($input), 0, array($x, $y));
	      array_pop($input);
	      array_splice($input, -1);
	      array_shift($input);
	      array_splice($input, 0, 1);
	      array_unshift($input, $x, $y);
	      array_splice($input, 0, 0, array($x, $y));
	      $input[$x] = $y; // for arrays where key equals offset
	      array_splice($input, $x, 1, $y);
	      ?>

SEE ALSO

       array_slice(3), unset(3), array_merge(3).

PHP Documentation Group 													   ARRAY_SPLICE(3)