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|
--TEST--
Test sort() function : usage variations - sort strings
--FILE--
<?php
/* Prototype : bool sort ( array &$array [, int $sort_flags] )
* Description: This function sorts an array.
Elements will be arranged from lowest to highest when this function has completed.
* Source code: ext/standard/array.c
*/
/*
* testing sort() by providing different string arrays for $array argument with following flag values
* flag value as defualt
* SORT_REGULAR - compare items normally
* SORT_STRING - compare items as strings
*/
echo "*** Testing sort() : usage variations ***\n";
$various_arrays = array (
// group of escape sequences
array(null, NULL, "\a", "\cx", "\e", "\f", "\n", "\r", "\t", "\xhh", "\ddd", "\v"),
// array contains combination of capital/small letters
array("lemoN", "Orange", "banana", "apple", "Test", "TTTT", "ttt", "ww", "x", "X", "oraNGe", "BANANA")
);
$flags = array("SORT_REGULAR" => SORT_REGULAR, "SORT_STRING" => SORT_STRING);
$count = 1;
echo "\n-- Testing sort() by supplying various string arrays --\n";
// loop through to test sort() with different arrays
foreach ($various_arrays as $array) {
echo "\n-- Iteration $count --\n";
echo "- With Default sort flag -\n";
$temp_array = $array;
var_dump(sort($temp_array) ); // expecting : bool(true)
var_dump($temp_array);
// loop through $flags array and setting all possible flag values
foreach($flags as $key => $flag){
echo "- Sort flag = $key -\n";
$temp_array = $array;
var_dump(sort($temp_array, $flag) ); // expecting : bool(true)
var_dump($temp_array);
}
$count++;
}
echo "Done\n";
?>
--EXPECT--
*** Testing sort() : usage variations ***
-- Testing sort() by supplying various string arrays --
-- Iteration 1 --
- With Default sort flag -
bool(true)
array(12) {
[0]=>
NULL
[1]=>
NULL
[2]=>
string(1) " "
[3]=>
string(1) "
"
[4]=>
string(1) " "
[5]=>
string(1) " "
[6]=>
string(1) "
"
[7]=>
string(1) ""
[8]=>
string(2) "\a"
[9]=>
string(3) "\cx"
[10]=>
string(4) "\ddd"
[11]=>
string(4) "\xhh"
}
- Sort flag = SORT_REGULAR -
bool(true)
array(12) {
[0]=>
NULL
[1]=>
NULL
[2]=>
string(1) " "
[3]=>
string(1) "
"
[4]=>
string(1) " "
[5]=>
string(1) " "
[6]=>
string(1) "
"
[7]=>
string(1) ""
[8]=>
string(2) "\a"
[9]=>
string(3) "\cx"
[10]=>
string(4) "\ddd"
[11]=>
string(4) "\xhh"
}
- Sort flag = SORT_STRING -
bool(true)
array(12) {
[0]=>
NULL
[1]=>
NULL
[2]=>
string(1) " "
[3]=>
string(1) "
"
[4]=>
string(1) " "
[5]=>
string(1) " "
[6]=>
string(1) "
"
[7]=>
string(1) ""
[8]=>
string(2) "\a"
[9]=>
string(3) "\cx"
[10]=>
string(4) "\ddd"
[11]=>
string(4) "\xhh"
}
-- Iteration 2 --
- With Default sort flag -
bool(true)
array(12) {
[0]=>
string(6) "BANANA"
[1]=>
string(6) "Orange"
[2]=>
string(4) "TTTT"
[3]=>
string(4) "Test"
[4]=>
string(1) "X"
[5]=>
string(5) "apple"
[6]=>
string(6) "banana"
[7]=>
string(5) "lemoN"
[8]=>
string(6) "oraNGe"
[9]=>
string(3) "ttt"
[10]=>
string(2) "ww"
[11]=>
string(1) "x"
}
- Sort flag = SORT_REGULAR -
bool(true)
array(12) {
[0]=>
string(6) "BANANA"
[1]=>
string(6) "Orange"
[2]=>
string(4) "TTTT"
[3]=>
string(4) "Test"
[4]=>
string(1) "X"
[5]=>
string(5) "apple"
[6]=>
string(6) "banana"
[7]=>
string(5) "lemoN"
[8]=>
string(6) "oraNGe"
[9]=>
string(3) "ttt"
[10]=>
string(2) "ww"
[11]=>
string(1) "x"
}
- Sort flag = SORT_STRING -
bool(true)
array(12) {
[0]=>
string(6) "BANANA"
[1]=>
string(6) "Orange"
[2]=>
string(4) "TTTT"
[3]=>
string(4) "Test"
[4]=>
string(1) "X"
[5]=>
string(5) "apple"
[6]=>
string(6) "banana"
[7]=>
string(5) "lemoN"
[8]=>
string(6) "oraNGe"
[9]=>
string(3) "ttt"
[10]=>
string(2) "ww"
[11]=>
string(1) "x"
}
Done
|
