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- --TEST--
- Test array_diff() function : usage variations - array with different data types as values
- --FILE--
- <?php
- /* Prototype : array array_diff(array $arr1, array $arr2 [, array ...])
- * Description: Returns the entries of $arr1 that have values which are not
- * present in any of the others arguments.
- * Source code: ext/standard/array.c
- */
- /*
- * Test how array_diff() compares indexed arrays containing different
- * data types as values in place of $arr2
- */
- echo "*** Testing array_diff() : usage variations ***\n";
- // Initialise function arguments not being substituted (if any)
- $array = array(1, 2);
- //get an unset variable
- $unset_var = 10;
- unset ($unset_var);
- //get heredoc
- $heredoc = <<<END
- This is a heredoc
- END;
- //array of values to iterate over
- $values = array(
- /*1*/"empty array" => array(),
- /*2*/
- "int" => array(
- // int data
- 0,
- 1,
- 12345,
- -2345),
- /*3*/
- "float" => array(
- // float data
- 10.5,
- -10.5,
- 12.3456789000e10,
- 12.3456789000E-10,
- .5),
- /*4*/
- "null" => array(
- // null data
- NULL,
- null),
- /*5*/
- "boolean" => array(
- // boolean data
- true,
- false,
- TRUE,
- FALSE),
- /*6*/
- "empty" => array(
- // empty data
- "",
- ''),
- /*7*/
- "string" => array(
- // string data
- "string",
- 'string',
- $heredoc),
- /*8*/
- "binary" => array(
- // binary data
- b"binary",
- (binary)"binary"),
- /*9*/
- "undefined" => array(
- // undefined data
- @$undefined_var),
- /*10*/
- "unset" => array(
- // unset data
- @$unset_var)
- );
- // loop through each element of the array for $arr2
- $iterator = 1;
- foreach($values as $value) {
- echo "\n Iteration: $iterator \n";
- var_dump( array_diff($array, $value) );
- $iterator++;
- };
- echo "Done";
- ?>
- --EXPECT--
- *** Testing array_diff() : usage variations ***
- Iteration: 1
- array(2) {
- [0]=>
- int(1)
- [1]=>
- int(2)
- }
- Iteration: 2
- array(1) {
- [1]=>
- int(2)
- }
- Iteration: 3
- array(2) {
- [0]=>
- int(1)
- [1]=>
- int(2)
- }
- Iteration: 4
- array(2) {
- [0]=>
- int(1)
- [1]=>
- int(2)
- }
- Iteration: 5
- array(1) {
- [1]=>
- int(2)
- }
- Iteration: 6
- array(2) {
- [0]=>
- int(1)
- [1]=>
- int(2)
- }
- Iteration: 7
- array(2) {
- [0]=>
- int(1)
- [1]=>
- int(2)
- }
- Iteration: 8
- array(2) {
- [0]=>
- int(1)
- [1]=>
- int(2)
- }
- Iteration: 9
- array(2) {
- [0]=>
- int(1)
- [1]=>
- int(2)
- }
- Iteration: 10
- array(2) {
- [0]=>
- int(1)
- [1]=>
- int(2)
- }
- Done
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