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79 lines
2.5 KiB
PHP
79 lines
2.5 KiB
PHP
--TEST--
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Test uasort() function : usage variations - built-in function as 'cmp_function'
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--FILE--
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<?php
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/* Prototype : bool uasort(array $array_arg, string $cmp_function)
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* Description: Sort an array with a user-defined comparison function and maintain index association
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* Source code: ext/standard/array.c
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*/
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/*
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* Passing different built-in library functions in place of 'cmp_function'
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* valid comparison functions: strcmp() & strcasecmp()
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* language constructs: echo & exit
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*/
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echo "*** Testing uasort() : built in function as 'cmp_function' ***\n";
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// Initializing variables
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$array_arg = array("b" => "Banana", "m" => "Mango", "a" => "apple", "p" => "Pineapple", "o" => "orange");
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$builtin_fun_arg = $array_arg;
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$languageConstruct_fun_arg = $array_arg;
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// Testing library functions as comparison function
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echo "-- Testing uasort() with built-in 'cmp_function': strcasecmp() --\n";
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var_dump( uasort($builtin_fun_arg, 'strcasecmp') ); // expecting: bool(true)
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var_dump($builtin_fun_arg);
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echo "-- Testing uasort() with built-in 'cmp_function': strcmp() --\n";
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var_dump( uasort($array_arg, 'strcmp') ); // expecting: bool(true)
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var_dump($array_arg);
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// Testing with language construct as comparison function
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echo "-- Testing uasort() with language construct as 'cmp_function' --\n";
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var_dump( uasort($languageConstruct_fun_arg, 'echo') ); // expecting: bool(false)
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echo "-- Testing uasort() with language construct as 'cmp_function' --\n";
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var_dump( uasort($languageConstruct_fun_arg, 'exit') ); // expecting: bool(false)
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echo "Done"
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?>
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--EXPECTF--
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*** Testing uasort() : built in function as 'cmp_function' ***
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-- Testing uasort() with built-in 'cmp_function': strcasecmp() --
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bool(true)
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array(5) {
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["a"]=>
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string(5) "apple"
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["b"]=>
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string(6) "Banana"
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["m"]=>
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string(5) "Mango"
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["o"]=>
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string(6) "orange"
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["p"]=>
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string(9) "Pineapple"
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}
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-- Testing uasort() with built-in 'cmp_function': strcmp() --
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bool(true)
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array(5) {
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["b"]=>
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string(6) "Banana"
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["m"]=>
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string(5) "Mango"
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["p"]=>
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string(9) "Pineapple"
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["a"]=>
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string(5) "apple"
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["o"]=>
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string(6) "orange"
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}
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-- Testing uasort() with language construct as 'cmp_function' --
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Warning: uasort() expects parameter 2 to be a valid callback, function 'echo' not found or invalid function name in %s on line %d
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NULL
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-- Testing uasort() with language construct as 'cmp_function' --
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Warning: uasort() expects parameter 2 to be a valid callback, function 'exit' not found or invalid function name in %s on line %d
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NULL
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Done
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