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--TEST-- Test strtr() function : usage variations - unexpected inputs for 'replace_pairs' argument --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 'replace_pairs' * and expected type for 'str' arguments */ echo "*** Testing strtr() function: with unexpected inputs for 'replace_pairs' ***\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"); //defining 'str' argument $str = "012atm"; // array of inputs for 'replace_pairs' argument $replace_pairs_arr = array ( // integer values 0, 1, -2, // float values 10.5, -20.5, 10.5e10, // array values array(), array(0), array(1, 2), // boolean values true, false, TRUE, FALSE, // null vlaues NULL, null, // objects new sample(), // resource $file_handle, // undefined variable @$undefined_var, // unset variable @$unset_var ); // loop through with each element of the $replace_pairs array to test strtr() function $count = 1; for($index = 0; $index < count($replace_pairs_arr); $index++) { echo "\n-- Iteration $count --\n"; $replace_pairs = $replace_pairs_arr[$index]; var_dump( strtr($str, $replace_pairs) ); $count ++; } fclose($file_handle); //closing the file handle echo "*** Done ***"; ?> --EXPECTF-- *** Testing strtr() function: with unexpected inputs for 'replace_pairs' *** -- Iteration 1 -- Warning: strtr(): The second argument is not an array in %s on line %d bool(false) -- Iteration 2 -- Warning: strtr(): The second argument is not an array in %s on line %d bool(false) -- Iteration 3 -- Warning: strtr(): The second argument is not an array in %s on line %d bool(false) -- Iteration 4 -- Warning: strtr(): The second argument is not an array in %s on line %d bool(false) -- Iteration 5 -- Warning: strtr(): The second argument is not an array in %s on line %d bool(false) -- Iteration 6 -- Warning: strtr(): The second argument is not an array in %s on line %d bool(false) -- Iteration 7 -- string(6) "012atm" -- Iteration 8 -- string(6) "012atm" -- Iteration 9 -- string(6) "122atm" -- Iteration 10 -- Warning: strtr(): The second argument is not an array in %s on line %d bool(false) -- Iteration 11 -- Warning: strtr(): The second argument is not an array in %s on line %d bool(false) -- Iteration 12 -- Warning: strtr(): The second argument is not an array in %s on line %d bool(false) -- Iteration 13 -- Warning: strtr(): The second argument is not an array in %s on line %d bool(false) -- Iteration 14 -- Warning: strtr(): The second argument is not an array in %s on line %d bool(false) -- Iteration 15 -- Warning: strtr(): The second argument is not an array in %s on line %d bool(false) -- Iteration 16 -- Warning: strtr(): The second argument is not an array in %s on line %d bool(false) -- Iteration 17 -- Warning: strtr(): The second argument is not an array in %s on line %d bool(false) -- Iteration 18 -- Warning: strtr(): The second argument is not an array in %s on line %d bool(false) -- Iteration 19 -- Warning: strtr(): The second argument is not an array in %s on line %d bool(false) *** Done ***