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103 lines
2.0 KiB
PHP
103 lines
2.0 KiB
PHP
--TEST--
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Test uasort() function : basic functionality - duplicate values
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--FILE--
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<?php
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/* Prototype : bool uasort(array $array_arg, string $cmp_function)
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* Description: Sort an array with a user-defined comparison function and maintain index association
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* Source code: ext/standard/array.c
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*/
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echo "*** Testing uasort() : basic functionality with duplicate values ***\n";
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// comparison function
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/* Prototype : int cmp(mixed $value1, mixed $value2)
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* Parameters : $value1 and $value2 - values to be compared
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* Return value : 0 - if both values are same
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* 1 - if value1 is greater than value2
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* -1 - if value1 is less than value2
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* Description : compares value1 and value2
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*/
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function cmp($value1, $value2)
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{
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if($value1 == $value2) {
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return 0;
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}
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else if($value1 > $value2) {
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return 1;
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}
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else
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return -1;
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}
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// increasing values
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$int_values1 = array(1, 1, 2, 2, 3, 3);
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echo "-- Numeric array with increasing values --\n";
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var_dump( uasort($int_values1, 'cmp') );
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var_dump($int_values1);
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// decreasing values
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$int_values2 = array(3, 3, 2, 2, 1, 1);
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echo "-- Numeric array with decreasing values --\n";
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var_dump( uasort($int_values2, 'cmp') );
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var_dump($int_values2);
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// increasing and decreasing values
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$int_values3 = array(1, 2, 3, 3, 2, 1);
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echo "-- Numeric array with increasing and decreasing values --\n";
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var_dump( uasort($int_values3, 'cmp') );
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var_dump($int_values3);
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echo "Done"
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?>
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--EXPECTF--
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*** Testing uasort() : basic functionality with duplicate values ***
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-- Numeric array with increasing values --
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bool(true)
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array(6) {
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[0]=>
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int(1)
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[1]=>
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int(1)
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[3]=>
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int(2)
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[2]=>
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int(2)
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[5]=>
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int(3)
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[4]=>
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int(3)
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}
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-- Numeric array with decreasing values --
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bool(true)
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array(6) {
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[4]=>
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int(1)
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[5]=>
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int(1)
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[3]=>
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int(2)
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[2]=>
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int(2)
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[1]=>
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int(3)
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[0]=>
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int(3)
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}
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-- Numeric array with increasing and decreasing values --
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bool(true)
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array(6) {
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[5]=>
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int(1)
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[0]=>
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int(1)
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[1]=>
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int(2)
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[4]=>
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int(2)
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[2]=>
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int(3)
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[3]=>
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int(3)
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}
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Done
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