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|
--TEST--
Test uasort() function : usage variations - sort diff. strings
--FILE--
<?php
/* Prototype : bool uasort(array $array_arg, string $cmp_function)
* Description: Sort an array with a user-defined comparison function and maintain index association
* Source code: ext/standard/array.c
*/
/*
* sorting different strings:
* single quoted, double quoted and heredoc strings
*/
// comparison function
/* Prototype : int cmp_function(mixed $value1, mixed $value2)
* Parameters : $value1 and $value2 - values to be compared
* Return value : 0 - if both values are same
* 1 - if value1 is greater than value2
* -1 - if value1 is less than value2
* Description : compares value1 and value2
*/
function cmp_function($value1, $value2)
{
if($value1 == $value2) {
return 0;
}
else if($value1 > $value2) {
return 1;
}
else {
return -1;
}
}
// Different heredoc strings to be sorted
$empty_heredoc =<<<EOT
EOT;
$simple_heredoc1 =<<<EOT
Heredoc
EOT;
$simple_heredoc2 =<<<EOT
HEREDOC
EOT;
$multiline_heredoc =<<<EOT
heredoc string\twith!@# and 123
Test this!!!
EOT;
echo "*** Testing uasort() : different string arrays as 'array_arg' ***\n";
// Single quoted strings
$single_quoted_values = array(
0 => ' ', 1 => 'test', 3 => 'Hello', 4 => 'HELLO',
5 => '', 6 => '\t', 7 => '0', 8 => '123Hello', 9 => '\'', 10 => '@#$%'
);
echo "-- Sorting Single Quoted String values --\n";
var_dump( uasort($single_quoted_values, 'cmp_function') ); // expecting: bool(true)
var_dump($single_quoted_values);
// Double quoted strings
$double_quoted_values = array(
0 => " ", 1 => "test", 3 => "Hello", 4 => "HELLO",
5 => "", 6 => "\t", 7 => "0", 8 => "123Hello", 9 => "\"", 10 => "@#$%"
);
echo "-- Sorting Double Quoted String values --\n";
var_dump( uasort($double_quoted_values, 'cmp_function') ); // expecting: bool(true)
var_dump($double_quoted_values);
// Heredoc strings
$heredoc_values = array(0 => $empty_heredoc, 1 => $simple_heredoc1, 2 => $simple_heredoc2, 3 => $multiline_heredoc);
echo "-- Sorting Heredoc String values --\n";
var_dump( uasort($heredoc_values, 'cmp_function') ); // expecting: bool(true)
var_dump($heredoc_values);
echo "Done"
?>
--EXPECTF--
*** Testing uasort() : different string arrays as 'array_arg' ***
-- Sorting Single Quoted String values --
bool(true)
array(10) {
[5]=>
string(0) ""
[0]=>
string(1) " "
[9]=>
string(1) "'"
[7]=>
string(1) "0"
[8]=>
string(8) "123Hello"
[10]=>
string(4) "@#$%"
[4]=>
string(5) "HELLO"
[3]=>
string(5) "Hello"
[6]=>
string(2) "\t"
[1]=>
string(4) "test"
}
-- Sorting Double Quoted String values --
bool(true)
array(10) {
[5]=>
string(0) ""
[6]=>
string(1) " "
[0]=>
string(1) " "
[9]=>
string(1) """
[7]=>
string(1) "0"
[8]=>
string(8) "123Hello"
[10]=>
string(4) "@#$%"
[4]=>
string(5) "HELLO"
[3]=>
string(5) "Hello"
[1]=>
string(4) "test"
}
-- Sorting Heredoc String values --
bool(true)
array(4) {
[0]=>
string(0) ""
[2]=>
string(7) "HEREDOC"
[1]=>
string(7) "Heredoc"
[3]=>
string(4%d) "heredoc string with!@# and 123
Test this!!!"
}
Done
|
