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--TEST--
Test array_filter() function : usage variations - anonymous callback functions
--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
*/
/*
* Passing different anonymous callback functions with passed by value and reference arguments
*/
echo "*** Testing array_filter() : usage variations - Anonymous callback functions ***\n";
$input = array(0, 1, -1, 10, 100, 1000, 'Hello', null);
// anonymous callback function
echo "Anonymous callback function with regular parameter and statement\n";
var_dump( array_filter($input, create_function('$input', 'return ($input > 1);') ) );
// anonymous callback function with reference
echo "Anonymous callback function with reference parameter\n";
var_dump( array_filter($input, create_function('&$input', 'return ($input < 1);') ) );
// anonymous callback function with null argument
echo "Anonymous callback funciton with null argument\n";
var_dump( array_filter($input, create_function(null, 'return true;') ) );
// anonymous callback function with argument and null statement
echo "Anonymous callback function with regular argument and null statement\n";
var_dump( array_filter($input, create_function('$input', null) ) );
echo "Done"
?>
--EXPECTF--
*** Testing array_filter() : usage variations - Anonymous callback functions ***
Anonymous callback function with regular parameter and statement
array(3) {
[3]=>
int(10)
[4]=>
int(100)
[5]=>
int(1000)
}
Anonymous callback function with reference parameter
array(4) {
[0]=>
int(0)
[2]=>
int(-1)
[6]=>
string(5) "Hello"
[7]=>
NULL
}
Anonymous callback funciton with null argument
array(8) {
[0]=>
int(0)
[1]=>
int(1)
[2]=>
int(-1)
[3]=>
int(10)
[4]=>
int(100)
[5]=>
int(1000)
[6]=>
string(5) "Hello"
[7]=>
NULL
}
Anonymous callback function with regular argument and null statement
array(0) {
}
Done
|
