array_diff_key_variation7.phpt [plain text]
--TEST--
Test array_diff_key() function : usage variation - Passing null,unset and undefined variable indexed array
--FILE--
<?php
echo "*** Testing array_diff_key() : usage variation ***\n";
$input_array = array(10 => '10', "" => 'empty');
$unset_var = 10;
unset ($unset_var);
$input_arrays = array(
'null indexed' => array(NULL => 'null 1', null => 'null 2'),
'undefined indexed' => array(@$undefined_var => 'undefined'),
'unset indexed' => array(@$unset_var => 'unset'),
);
foreach($input_arrays as $key =>$value) {
echo "\n--$key--\n";
var_dump( array_diff_key($input_array, $value) );
var_dump( array_diff_key($value, $input_array) );
}
?>
===DONE===
--EXPECTF--
*** Testing array_diff_key() : usage variation ***
--null indexed--
array(1) {
[10]=>
string(2) "10"
}
array(0) {
}
--undefined indexed--
array(1) {
[10]=>
string(2) "10"
}
array(0) {
}
--unset indexed--
array(1) {
[10]=>
string(2) "10"
}
array(0) {
}
===DONE===