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--TEST--
Test array_filter() function : basic functionality
--FILE--
<?php
/* Prototype : array array_filter(array $input [, callback $callback])
* Description: Filters elements from the array via the callback.
* Source code: ext/standard/array.c
*/
echo "*** Testing array_filter() : basic functionality ***\n";
// Initialise all required variables
$input = array(1, 2, 3, 0, -1); // 0 will be considered as FALSE and removed in default callback
/* Callback function
* Prototype : bool even(array $input)
* Parameters : $input - input array each element of which will be checked in function even()
* Return type : boolean - true if element is even and false otherwise
* Description : This function takes array as parameter and checks for each element of array.
* It returns true if the element is even number else returns false
*/
function even($input)
{
return ($input % 2 == 0);
}
// with all possible arguments
var_dump( array_filter($input,"even") );
// with default arguments
var_dump( array_filter($input) );
echo "Done"
?>
--EXPECT--
*** Testing array_filter() : basic functionality ***
array(2) {
[1]=>
int(2)
[3]=>
int(0)
}
array(4) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
int(3)
[4]=>
int(-1)
}
Done
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