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Top Forums Shell Programming and Scripting How to pass and read an array in ksh shell script function.? Post 303039848 by RudiC on Wednesday 16th of October 2019 09:52:24 AM
Old 10-16-2019
The first posistional parameter is NOT an array, and thus can't be indexed.


How about
Code:
verifyfiles() {  for sym ; do echo "Array in FUNCTION Contains:";     echo "$sym"; done; }
.
.
.
verifyfiles ${filelist[@]}
Array in FUNCTION Contains:
val1
Array in FUNCTION Contains:
val2
Array in FUNCTION Contains:
val3

 

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ARRAY_FILTER(3) 							 1							   ARRAY_FILTER(3)

array_filter - Filters elements of an array using a callback function

SYNOPSIS
array array_filter (array $array, [callable $callback], [int $flag]) DESCRIPTION
Iterates over each value in the $array passing them to the $callback function. If the $callback function returns true, the current value from $array is returned into the result array. Array keys are preserved. PARAMETERS
o $array - The array to iterate over o $callback - The callback function to use If no $callback is supplied, all entries of $array equal to FALSE (see converting to boolean) will be removed. o $flag - Flag determining what arguments are sent to $callback: o ARRAY_FILTER_USE_KEY - pass key as the only argument to $callback instead of the value o ARRAY_FILTER_USE_BOTH - pass both value and key as arguments to $callback instead of the value RETURN VALUES
Returns the filtered array. CHANGELOG
+--------+---------------------------------------------------+ |Version | | | | | | | Description | | | | +--------+---------------------------------------------------+ | 5.6.0 | | | | | | | Added optional $flag parameter and constants | | | ARRAY_FILTER_USE_KEY and ARRAY_FILTER_USE_BOTH | | | | +--------+---------------------------------------------------+ EXAMPLES
Example #1 array_filter(3) example <?php function odd($var) { // returns whether the input integer is odd return($var & 1); } function even($var) { // returns whether the input integer is even return(!($var & 1)); } $array1 = array("a"=>1, "b"=>2, "c"=>3, "d"=>4, "e"=>5); $array2 = array(6, 7, 8, 9, 10, 11, 12); echo "Odd : "; print_r(array_filter($array1, "odd")); echo "Even: "; print_r(array_filter($array2, "even")); ?> The above example will output: Odd : Array ( [a] => 1 [c] => 3 [e] => 5 ) Even: Array ( [0] => 6 [2] => 8 [4] => 10 [6] => 12 ) Example #2 array_filter(3) without $callback <?php $entry = array( 0 => 'foo', 1 => false, 2 => -1, 3 => null, 4 => '' ); print_r(array_filter($entry)); ?> The above example will output: Array ( [0] => foo [2] => -1 ) Example #3 array_filter(3) with $flag <?php $arr = ['a' => 1, 'b' => 2, 'c' => 3, 'd' => 4]; var_dump(array_filter($arr, function($k) { return $k == 'b'; }, ARRAY_FILTER_USE_KEY)); var_dump(array_filter($arr, function($v, $k) { return $k == 'b' || $v == 4; }, ARRAY_FILTER_USE_BOTH)); ?> The above example will output: array(1) { ["b"]=> int(2) } array(2) { ["b"]=> int(2) ["d"]=> int(4) } NOTES
Caution If the array is changed from the callback function (e.g. element added, deleted or unset) the behavior of this function is unde- fined. SEE ALSO
array_map(3), array_reduce(3), array_walk(3). PHP Documentation Group ARRAY_FILTER(3)
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