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--TEST-- Test crc32() function : usage variations - unexpected values --SKIPIF-- <?php if (PHP_INT_SIZE != 4) die("skip this test is for 32bit platform only"); ?> --FILE-- <?php /* Prototype : string crc32(string $str) * Description: Calculate the crc32 polynomial of a string * Source code: ext/standard/crc32.c * Alias to functions: none */ /* * Testing crc32() : with unexpected values for str argument */ echo "*** Testing crc32() : with unexpected values for str argument ***\n"; //get an unset variable $unset_var = 10; unset ($unset_var); // declaring class class sample { public function __toString() { return "object"; } } // creating a file resource $file_handle = fopen(__FILE__, 'r'); //array of values to iterate over $values = array( // int data 0, 1, 12345, -2345, // float data 10.5, -10.5, 10.1234567e10, 10.7654321E-10, .5, // array data array(), array(0), array(1), array(1, 2), array('color' => 'red', 'item' => 'pen'), // null data NULL, null, // boolean data true, false, TRUE, FALSE, // empty data "", '', // object data new sample(), // undefined data $undefined_var, // unset data $unset_var, // resource $file_handle ); // loop through each element of the array for str $count = 1; foreach($values as $value) { echo "\n-- Iteration $count --\n"; var_dump( crc32($value) ); $count++; }; // closing the resource fclose($file_handle); echo "Done"; ?> --EXPECTF-- *** Testing crc32() : with unexpected values for str argument *** Notice: Undefined variable: undefined_var in %s on line %d Notice: Undefined variable: unset_var in %s on line %d -- Iteration 1 -- int(-186917087) -- Iteration 2 -- int(-2082672713) -- Iteration 3 -- int(-873121252) -- Iteration 4 -- int(1860518047) -- Iteration 5 -- int(269248583) -- Iteration 6 -- int(-834950157) -- Iteration 7 -- int(-965354630) -- Iteration 8 -- int(1376932222) -- Iteration 9 -- int(-2036403827) -- Iteration 10 -- Warning: crc32() expects parameter 1 to be string, array given in %s on line %d NULL -- Iteration 11 -- Warning: crc32() expects parameter 1 to be string, array given in %s on line %d NULL -- Iteration 12 -- Warning: crc32() expects parameter 1 to be string, array given in %s on line %d NULL -- Iteration 13 -- Warning: crc32() expects parameter 1 to be string, array given in %s on line %d NULL -- Iteration 14 -- Warning: crc32() expects parameter 1 to be string, array given in %s on line %d NULL -- Iteration 15 -- int(0) -- Iteration 16 -- int(0) -- Iteration 17 -- int(-2082672713) -- Iteration 18 -- int(0) -- Iteration 19 -- int(-2082672713) -- Iteration 20 -- int(0) -- Iteration 21 -- int(0) -- Iteration 22 -- int(0) -- Iteration 23 -- int(-1465013268) -- Iteration 24 -- int(0) -- Iteration 25 -- int(0) -- Iteration 26 -- Warning: crc32() expects parameter 1 to be string, resource given in %s on line %d NULL Done