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Full Discussion: [bash] passing array to function
Top Forums Shell Programming and Scripting [bash] passing array to function Post 302364759 by ASGR on Friday 23rd of October 2009 07:17:27 PM
Old 10-23-2009
Thank you again.

The corrected code works flawlessly. Additionally,
I can use it within other functions to assign arrays.
Your help and solution has exceeding my expectations.

For the benefit of other users the whole code follows:
Code:
#!/bin/bash

function array_assign
{
	eval "$1=( \"\${$2[@]}\" )"
}

function array_count
{
	eval "$1=( \${#$2[@]} )"
}

function array_load
{
	local		_FILE_;		_FILE_=( $(eval "echo \$2") )
	local -a	_THIS_
	while read _LINE_; do
		case $_LINE_ in
		'#'*)	continue;;		# lines to exclude
		'*'*)	continue;;
		'/'*)	continue;;
		"")	continue;;
		*)	_THIS_[_I_++]=" \"$_LINE_\"";;
		esac
	done < $_FILE_
	eval "$1=( ${_THIS_[@]} )"
}

#usage:
declare    filename=/path/to/file/array.data
declare -a _array1_ _array2_
declare -i _count_

array_load _array1_ $filename
array_assign _array2_ _array1_
array_count _count_ _array2_

A.
 

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LEARN ABOUT PHP

current

CURRENT(3)								 1								CURRENT(3)

current - Return the current element in an array

SYNOPSIS

       mixed current (array  &$array)

DESCRIPTION

	Every array has an internal pointer to its "current" element, which is initialized to the first element inserted into the array.

PARAMETERS

	      o $array
		- The array.

RETURN VALUES

	The  current(3)  function simply returns the value of the array element that's currently being pointed to by the internal pointer. It does
       not move the pointer in any way. If the internal pointer points beyond the end of the elements list  or	the  array  is	empty,	current(3)
       returns FALSE.

       Warning

	      This function may return Boolean FALSE, but may also return a non-Boolean value which evaluates to FALSE. Please read the section on
	      Booleans for more information. Use the === operator for testing the return value of this function.

EXAMPLES

       Example #1

	      Example use of current(3) and friends

	      <?php
	      $transport = array('foot', 'bike', 'car', 'plane');
	      $mode = current($transport); // $mode = 'foot';
	      $mode = next($transport);    // $mode = 'bike';
	      $mode = current($transport); // $mode = 'bike';
	      $mode = prev($transport);    // $mode = 'foot';
	      $mode = end($transport);	   // $mode = 'plane';
	      $mode = current($transport); // $mode = 'plane';

	      $arr = array();
	      var_dump(current($arr)); // bool(false)

	      $arr = array(array());
	      var_dump(current($arr)); // array(0) { }
	      ?>

NOTES

       Note

	       You won't be able to distinguish the end of an array from a boolean FALSE element. To properly traverse an array which may  contain
	      FALSE elements, see the each(3) function.

SEE ALSO

       end(3), key(3), each(3), prev(3), reset(3), next(3).

PHP Documentation Group 														CURRENT(3)
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