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--TEST--
Test usort() function : error conditions - Pass incorrect number of arguments
--FILE--
<?php
/* Prototype : bool usort(array $array_arg, string $cmp_function)
* Description: Sort an array by values using a user-defined comparison function
* Source code: ext/standard/array.c
*/
/*
* Pass incorrect number of arguments to usort() to test behaviour
*/
echo "*** Testing usort() : error conditions ***\n";
//Test usort with one more than the expected number of arguments
echo "\n-- Testing usort() function with more than expected no. of arguments --\n";
$array_arg = array(1, 2);
$cmp_function = 'string_val';
$extra_arg = 10;
var_dump( usort($array_arg, $cmp_function, $extra_arg) );
// Testing usort with one less than the expected number of arguments
echo "\n-- Testing usort() function with less than expected no. of arguments --\n";
$array_arg = array(1, 2);
var_dump( usort($array_arg) );
?>
===DONE===
--EXPECTF--
*** Testing usort() : error conditions ***
-- Testing usort() function with more than expected no. of arguments --
Warning: usort() expects exactly 2 parameters, 3 given in %s on line %d
NULL
-- Testing usort() function with less than expected no. of arguments --
Warning: usort() expects exactly 2 parameters, 1 given in %s on line %d
NULL
===DONE===
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