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_CHUNK(3)								 1							    ARRAY_CHUNK(3)

array_chunk - Split an array into chunks

SYNOPSIS

       array array_chunk (array  $array, int  $size, [bool  $preserve_keys = false])

DESCRIPTION

	Chunks an array into arrays with $size elements. The last chunk may contain less than $size elements.

PARAMETERS

	      o $array
		- The array to work on

	      o $size
		- The size of each chunk

	      o $preserve_keys
		- When set to TRUE keys will be preserved. Default is FALSE which will reindex the chunk numerically

RETURN VALUES

	Returns a multidimensional numerically indexed array, starting with zero, with each dimension containing $size elements.

ERRORS
/EXCEPTIONS
	If $size is less than 1 E_WARNING will be thrown and NULL returned.

EXAMPLES

       Example #1

	      array_chunk(3) example

	      <?php
	      $input_array = array('a', 'b', 'c', 'd', 'e');
	      print_r(array_chunk($input_array, 2));
	      print_r(array_chunk($input_array, 2, true));
	      ?>

	      The above example will output:

	      Array
	      (
		  [0] => Array
		      (
			  [0] => a
			  [1] => b
		      )

		  [1] => Array
		      (
			  [0] => c
			  [1] => d
		      )

		  [2] => Array
		      (
			  [0] => e
		      )

	      )
	      Array
	      (
		  [0] => Array
		      (
			  [0] => a
			  [1] => b
		      )

		  [1] => Array
		      (
			  [2] => c
			  [3] => d
		      )

		  [2] => Array
		      (
			  [4] => e
		      )

	      )

SEE ALSO

       array_slice(3).

PHP Documentation Group 													    ARRAY_CHUNK(3)