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59 lines
1.3 KiB
PHP
59 lines
1.3 KiB
PHP
--TEST--
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Test array_diff_key() function : usage variation - Passing null,unset and undefined variable indexed array
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--FILE--
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<?php
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/* Prototype : array array_diff_key(array arr1, array arr2 [, array ...])
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* Description: Returns the entries of arr1 that have keys which are not present in any of the others arguments.
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* Source code: ext/standard/array.c
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*/
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echo "*** Testing array_diff_key() : usage variation ***\n";
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// Initialise function arguments not being substituted (if any)
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$input_array = array(10 => '10', "" => 'empty');
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//get an unset variable
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$unset_var = 10;
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unset ($unset_var);
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$input_arrays = array(
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'null indexed' => array(NULL => 'null 1', null => 'null 2'),
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'undefined indexed' => array(@$undefined_var => 'undefined'),
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'unset indexed' => array(@$unset_var => 'unset'),
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);
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foreach($input_arrays as $key =>$value) {
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echo "\n--$key--\n";
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// loop through each element of the array for arr1
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var_dump( array_diff_key($input_array, $value) );
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var_dump( array_diff_key($value, $input_array) );
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}
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?>
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===DONE===
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--EXPECTF--
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*** Testing array_diff_key() : usage variation ***
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--null indexed--
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array(1) {
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[10]=>
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string(2) "10"
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}
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array(0) {
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}
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--undefined indexed--
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array(1) {
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[10]=>
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string(2) "10"
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}
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array(0) {
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}
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--unset indexed--
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array(1) {
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[10]=>
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string(2) "10"
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}
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array(0) {
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}
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===DONE===
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