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--TEST-- Test strtr() function : usage variations - unexpected inputs for all arguments --FILE-- <?php /* Prototype : string strtr(string $str, string $from[, string $to]); string strtr(string $str, array $replace_pairs); * Description: Translates characters in str using given translation tables * Source code: ext/standard/string.c */ /* Test strtr() function: with unexpected inputs for 'str', 'from', 'to' & 'replace_pairs' arguments */ echo "*** Testing strtr() function: with unexpected inputs for all arguments ***\n"; //get an unset variable $unset_var = 'string_val'; unset($unset_var); //defining a class class sample { public function __toString() { return "sample object"; } } //getting the resource $file_handle = fopen(__FILE__, "r"); // array with different values $values = array ( // integer values /*1*/ 0, 1, -2, // float values /*4*/ 10.5, -20.5, 10.1234567e10, // array values /*7*/ array(), array(0), array(1), array(1, 2), array('color' => 'red', 'item' => 'pen'), // boolean values /*12*/ true, false, TRUE, FALSE, // null vlaues /*16*/ NULL, null, // objects /*18*/ new sample(), // resource /*19*/ $file_handle, // undefined variable /*20*/ @$undefined_var, // unset variable /*21*/ @$unset_var ); // loop through with each element of the $values array to test strtr() function $count = 1; for($index = 0; $index < count($values); $index++) { echo "\n-- Iteration $count --\n"; var_dump( strtr($values[$index], $values[$index], $values[$index]) ); //fn call with three args var_dump( strtr($values[$index], $values[$index]) ); //fn call with two args $count ++; } fclose($file_handle); //closing the file handle ?> ===DONE=== --EXPECTF-- *** Testing strtr() function: with unexpected inputs for all arguments *** -- Iteration 1 -- string(1) "0" Warning: strtr(): The second argument is not an array in %s on line %d bool(false) -- Iteration 2 -- string(1) "1" Warning: strtr(): The second argument is not an array in %s on line %d bool(false) -- Iteration 3 -- string(2) "-2" Warning: strtr(): The second argument is not an array in %s on line %d bool(false) -- Iteration 4 -- string(4) "10.5" Warning: strtr(): The second argument is not an array in %s on line %d bool(false) -- Iteration 5 -- string(5) "-20.5" Warning: strtr(): The second argument is not an array in %s on line %d bool(false) -- Iteration 6 -- string(12) "101234567000" Warning: strtr(): The second argument is not an array in %s on line %d bool(false) -- Iteration 7 -- Warning: strtr() expects parameter 1 to be string, array given in %s on line %d NULL Warning: strtr() expects parameter 1 to be string, array given in %s on line %d NULL -- Iteration 8 -- Warning: strtr() expects parameter 1 to be string, array given in %s on line %d NULL Warning: strtr() expects parameter 1 to be string, array given in %s on line %d NULL -- Iteration 9 -- Warning: strtr() expects parameter 1 to be string, array given in %s on line %d NULL Warning: strtr() expects parameter 1 to be string, array given in %s on line %d NULL -- Iteration 10 -- Warning: strtr() expects parameter 1 to be string, array given in %s on line %d NULL Warning: strtr() expects parameter 1 to be string, array given in %s on line %d NULL -- Iteration 11 -- Warning: strtr() expects parameter 1 to be string, array given in %s on line %d NULL Warning: strtr() expects parameter 1 to be string, array given in %s on line %d NULL -- Iteration 12 -- string(1) "1" Warning: strtr(): The second argument is not an array in %s on line %d bool(false) -- Iteration 13 -- string(0) "" Warning: strtr(): The second argument is not an array in %s on line %d bool(false) -- Iteration 14 -- string(1) "1" Warning: strtr(): The second argument is not an array in %s on line %d bool(false) -- Iteration 15 -- string(0) "" Warning: strtr(): The second argument is not an array in %s on line %d bool(false) -- Iteration 16 -- string(0) "" Warning: strtr(): The second argument is not an array in %s on line %d bool(false) -- Iteration 17 -- string(0) "" Warning: strtr(): The second argument is not an array in %s on line %d bool(false) -- Iteration 18 -- string(13) "sample object" Warning: strtr(): The second argument is not an array in %s on line %d bool(false) -- Iteration 19 -- Warning: strtr() expects parameter 1 to be string, resource given in %s on line %d NULL Warning: strtr() expects parameter 1 to be string, resource given in %s on line %d NULL -- Iteration 20 -- string(0) "" Warning: strtr(): The second argument is not an array in %s on line %d bool(false) -- Iteration 21 -- string(0) "" Warning: strtr(): The second argument is not an array in %s on line %d bool(false) ===DONE===