Hello,
some users on the institution I work on are facing problems with Calculated Questions on version 2.8.3+ (Build: 20150219)
It seems that it is related to MDL-46148 but i cannot access this tracker issue to confirm (the only references i've found is https://moodle.org/mod/forum/discuss.php?d=264266 and http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-46148)
I've tracked down the problem to calculate_raw function on question/type/calculated/question.php
Here is the code:
435 protected function calculate_raw($expression) {
436 // This validation trick from http://php.net/manual/en/function.eval.php .
437 if (!@eval('return true; $result = ' . $expression . ';')) {
438 throw new moodle_exception('illegalformulasyntax', 'qtype_calculated', '', $expression);
439 }
440 return eval('return ' . $expression . ';');
441 }
I've removed the "@" to show the errors so I could get the parameters passed to the functions (not only the stack trace that moodle shows) . Here is a copy of what xdebug shows:
| ( ! ) Parse error: syntax error, unexpected '{' in /home/daniel/public_html/2moodle/question/type/calculated/question.php(437) : eval()'d code on line 1 | ||||
|---|---|---|---|---|
| Call Stack | ||||
| # | Time | Memory | Function | Location |
| 1 | 0.0008 | 305808 | {main}( ) | ../review.php:0 |
| 2 | 0.1701 | 25752928 | quiz_attempt::create( $attemptid = 7 ) | ../review.php:45 |
| 3 | 0.1701 | 25753424 | quiz_attempt::create_helper( $conditions = array ('id' => 7) ) | ../attemptlib.php:517 |
| 4 | 0.1730 | 26050632 | quiz_attempt->__construct( $attempt = class stdClass { public $id = '7'; public $quiz = '1'; public $userid = '9'; public $attempt = '1'; public $uniqueid = '7'; public $layout = '1,0,2,0,3,0,4,0,5,0,6,0'; public $currentpage = '5'; public $preview = '0'; public $state = 'finished'; public $timestart = '1416585118'; public $timefinish = '1416588082'; public $timemodified = '1416588082'; public $timecheckstate = '0'; public $sumgrades = '5.66667' }, $quiz = class stdClass { public $id = '1'; public $course = '2'; public $name = 'Lista 7C'; public $intro = ''; public $introformat = '1'; public $timeopen = '0'; public $timeclose = '1417139700'; public $timelimit = '0'; public $overduehandling = 'autosubmit'; public $graceperiod = '0'; public $preferredbehaviour = 'deferredfeedback'; public $attempts = '0'; public $attemptonlast = '0'; public $grademethod = '4'; public $decimalpoints = '2'; public $questiondecimalpoints = '-1'; public $reviewattempt = '69904'; public $reviewcorrectness = '16'; public $reviewmarks = '16'; public $reviewspecificfeedback = '16'; public $reviewgeneralfeedback = '16'; public $reviewrightanswer = '16'; public $reviewoverallfeedback = '0'; public $questionsperpage = '1'; public $navmethod = 'free'; public $shufflequestions = '0'; public $shuffleanswers = '1'; public $sumgrades = '6.00000'; public $grade = '10.00000'; public $timecreated = '0'; public $timemodified = '1416583975'; public $password = ''; public $subnet = ''; public $browsersecurity = '-'; public $delay1 = '0'; public $delay2 = '0'; public $showuserpicture = '0'; public $showblocks = '0'; public $completionattemptsexhausted = '0'; public $completionpass = '0'; public $cmid = '3' }, $cm = class stdClass { public $id = '3'; public $course = '2'; public $module = '16'; public $instance = '1'; public $section = '1'; public $idnumber = ''; public $added = '1416569962'; public $score = '0'; public $indent = '0'; public $visible = '1'; public $visibleold = '1'; public $groupmode = '0'; public $groupingid = '0'; public $completion = '0'; public $completiongradeitemnumber = NULL; public $completionview = '0'; public $completionexpected = '0'; public $showdescription = '0'; public $availability = NULL; public $name = 'Lista 7C'; public $modname = 'quiz' }, $course = class stdClass { public $id = '2'; public $category = '1'; public $sortorder = '10001'; public $fullname = 'nananana'; public $shortname = 'aca'; public $idnumber = ''; public $summary = ''; public $summaryformat = '1'; public $format = 'weeks'; public $showgrades = '1'; public $newsitems = '5'; public $startdate = '1421200800'; public $marker = '0'; public $maxbytes = '0'; public $legacyfiles = '0'; public $showreports = '0'; public $visible = '1'; public $visibleold = '1'; public $groupmode = '0'; public $groupmodeforce = '0'; public $defaultgroupingid = '0'; public $lang = ''; public $calendartype = ''; public $theme = ''; public $timecreated = '1421178817'; public $timemodified = '1421178817'; public $requested = '0'; public $enablecompletion = '0'; public $completionnotify = '0'; public $cacherev = '1425928270' }, $loadquestions = ??? ) | ../attemptlib.php:507 |
| 5 | 0.1732 | 26053504 | question_engine::load_questions_usage_by_activity( $qubaid = '7', $db = ??? ) | ../attemptlib.php:487 |
| 6 | 0.1732 | 26053888 | question_engine_data_mapper->load_questions_usage_by_activity( $qubaid = '7' ) | ../lib.php:84 |
| 7 | 0.1734 | 26060160 | question_usage_by_activity::load_from_records( $records = class mysqli_native_moodle_recordset { protected $result = class mysqli_result { public $current_field = NULL; public $field_count = NULL; public $lengths = NULL; public $num_rows = NULL; public $type = NULL }; protected $current = array ('qubaid' => '7', 'contextid' => '44', 'component' => 'mod_quiz', 'preferredbehaviour' => 'deferredfeedback', 'questionattemptid' => '37', 'questionusageid' => '7', 'slot' => '1', 'behaviour' => 'deferredfeedback', 'questionid' => '15', 'variant' => '7', 'maxmark' => '1.0000000', 'minfraction' => '0.0000000', 'maxfraction' => '1.0000000', 'flagged' => '0', 'questionsummary' => 'Analise o programa abaixo e indique qual será a saída apresentada. A saída é um valor numérico inteiro. \n\n/* ------ inicio ------ */ \n\n#include <stdio.h> \n\n \n\nint func1(int x){ \n\n return x + x; \n\n} \n\n \n\nint main(){ \n\n int a = 2, t = 3; \n\n a = func1(a); \n\n a = func1(a + t); \n\n printf("%d\\n",a); \n\n} \n\n/* ------ fim ------ */ \n\n ', 'rightanswer' => '14,00', 'responsesummary' => '14', 'timemodified' => '1416588082', 'attemptstepid' => '94', 'sequencenumber' => '1', 'state' => 'complete', 'fraction' => NULL, 'timecreated' => '1416585182', 'userid' => '9', 'name' => 'answer', 'value' => '14') }, $qubaid = '7' ) | ../datalib.php:418 |
| 8 | 0.1734 | 26065056 | question_attempt::load_from_records( $records = class mysqli_native_moodle_recordset { protected $result = class mysqli_result { public $current_field = NULL; public $field_count = NULL; public $lengths = NULL; public $num_rows = NULL; public $type = NULL }; protected $current = array ('qubaid' => '7', 'contextid' => '44', 'component' => 'mod_quiz', 'preferredbehaviour' => 'deferredfeedback', 'questionattemptid' => '37', 'questionusageid' => '7', 'slot' => '1', 'behaviour' => 'deferredfeedback', 'questionid' => '15', 'variant' => '7', 'maxmark' => '1.0000000', 'minfraction' => '0.0000000', 'maxfraction' => '1.0000000', 'flagged' => '0', 'questionsummary' => 'Analise o programa abaixo e indique qual será a saída apresentada. A saída é um valor numérico inteiro. \n\n/* ------ inicio ------ */ \n\n#include <stdio.h> \n\n \n\nint func1(int x){ \n\n return x + x; \n\n} \n\n \n\nint main(){ \n\n int a = 2, t = 3; \n\n a = func1(a); \n\n a = func1(a + t); \n\n printf("%d\\n",a); \n\n} \n\n/* ------ fim ------ */ \n\n ', 'rightanswer' => '14,00', 'responsesummary' => '14', 'timemodified' => '1416588082', 'attemptstepid' => '94', 'sequencenumber' => '1', 'state' => 'complete', 'fraction' => NULL, 'timecreated' => '1416585182', 'userid' => '9', 'name' => 'answer', 'value' => '14') }, $questionattemptid = '37', $observer = class question_engine_unit_of_work { protected $quba = class question_usage_by_activity { protected $id = '7'; protected $preferredbehaviour = 'deferredfeedback'; protected $context = class context_module { protected $_id = 44; protected $_contextlevel = 70; protected $_instanceid = '3'; protected $_path = '/1/3/18/44'; protected $_depth = '4' }; protected $owningcomponent = 'mod_quiz'; protected $questionattempts = array (); protected $observer = ... }; protected $modified = FALSE; protected $attemptsmodified = array (); protected $attemptsadded = array (); protected $stepsadded = array (); protected $stepsmodified = array (); protected $stepsdeleted = array () }, $preferredbehaviour = 'deferredfeedback' ) | ../questionusage.php:862 |
| 9 | 0.1787 | 27051944 | qtype_calculated_question->apply_attempt_state( $step = class question_attempt_step_read_only { private ${question_attempt_step}:id = '93'; private ${question_attempt_step}:state = class question_state_todo { }; private ${question_attempt_step}:fraction = NULL; private ${question_attempt_step}:timecreated = '1416585118'; private ${question_attempt_step}:userid = '9'; private ${question_attempt_step}:data = array ('_separators' => ',$.', '_var_a' => '2', '_var_t' => '3'); private ${question_attempt_step}:files = array () } ) | ../questionattempt.php:1415 |
| 10 | 0.1787 | 27052040 | qtype_calculated_question_helper::apply_attempt_state( $question = class qtype_calculated_question { public $datasetloader = class qtype_calculated_dataset_loader { protected $questionid = '15'; protected $itemsavailable = NULL }; public $vs = class qtype_calculated_variable_substituter { protected $values = array ('a' => '2', 't' => '3'); protected $decimalpoint = '.'; protected $search = array (0 => '{a}', 1 => '{t}'); protected $safevalue = array (0 => '(2)', 1 => '(3)'); protected $prettyvalue = array (0 => '2', 1 => '3'); public $replace = array () }; public $synchronised = '0'; public $answers = array (23 => class qtype_numerical_answer { public $tolerance = 0; public $tolerancetype = '1'; public $id = '23'; public $answer = '{a00} + {a01} + {a10} + {a11}'; public $answerformat = '2'; public $fraction = '1.0000000'; public $feedback = ''; public $feedbackformat = '1'; public $correctanswerlength = '0'; public $correctanswerformat = '1' }); public $unitdisplay = '3'; public $unitgradingtype = '0'; public $unitpenalty = '0.1000000'; public $ap = class qtype_numerical_answer_processor { protected $units = array (); protected $decsep = '.'; protected $thousandssep = ','; protected $unitsbefore = FALSE; protected $regex = NULL }; public $shownumcorrect = FALSE; public $id = '15'; public $category = '4'; public $contextid = '18'; public $parent = '0'; public $qtype = class qtype_calculated { public $wizardpagesnumber = 3; protected $fileoptions = array ('subdirs' => TRUE, 'maxfiles' => -1, 'maxbytes' => 0) }; public $name = 'Calcular resultado I'; public $questiontext = '<p>Analise o programa abaixo e indique qual será a saída apresentada. A saída é um valor numérico inteiro. </p>\n<p><span style="font-family: \'courier new\', courier, monospace;">/* ------ inicio ------ */ </span></p>\n<p class="p1"><span class="s1" style="font-family: \'courier new\', courier, monospace;">#include <stdio.h></span><span style="font-family: \'courier new\', courier, monospace; line-height: 1.231;"> </span></p>\n<p class="p1"><span class="s1" style="font-family: \'courier new\', courier, monospace;">int main(){</span></p>\n<p class="p1"><span class="s1" style="font-family: \'courier new\', courier, monospace;"> int a[2][2], soma;</span></p>\n<p class="p1"><span class="s1" style="font-family: \'courier new\', courier, monospace;"> a[0][0] = {a00};</span></p>\n<p class="p1"><span class="s1" style="font-family: \'courier new\', courier, monospace;"><span> a[0][1] = {a01};</span></span></p>\n<p class="p1"><span class="s1" style="font-family: \'courier new\', courier, monospace;"><span><span> a[1][0] = {a10};</span></span></span> </p>\n<p class="p1"><span class="s1" style="font-family: \'courier new\', courier, monospace;"><span> a[1][1] = {a11};</span></span></p>\n<p class="p1"><span class="s1" style="font-family: \'courier new\', courier, monospace;"><span> soma = <span>a[0][0] + <span>a[0][1] + <span>a[1][0] + <span>a[1][1];</span></span></span></span></span></span></p>\n<p class="p1"><span class="s1" style="font-family: \'courier new\', courier, monospace;"><span style="line-height: 1.231;"> printf("%d\\n",soma);</span></span></p>\n<p class="p1"><span class="s1" style="font-family: \'courier new\', courier, monospace;">}</span></p>\n<p class="p1"><span class="s1" style="font-family: \'courier new\', courier, monospace;">/* ------ fim ------ */</span></p>\n<p class="p1"> </p>'; public $questiontextformat = '1'; public $generalfeedback = ''; public $generalfeedbackformat = '1'; public $defaultmark = 1; public $length = '1'; public $penalty = 0.3333333; public $stamp = 'moodle.ufsc.br+141121122949+3ebsIM'; public $version = 'moodle.ufsc.br+141126163415+ltpDMm'; public $hidden = '0'; public $timecreated = '1416572989'; public $timemodified = '1417019655'; public $createdby = '21'; public $modifiedby = '21'; public $hints = array () }, $step = class question_attempt_step_read_only { private ${question_attempt_step}:id = '93'; private ${question_attempt_step}:state = class question_state_todo { }; private ${question_attempt_step}:fraction = NULL; private ${question_attempt_step}:timecreated = '1416585118'; private ${question_attempt_step}:userid = '9'; private ${question_attempt_step}:data = array ('_separators' => ',$.', '_var_a' => '2', '_var_t' => '3'); private ${question_attempt_step}:files = array () } ) | ../question.php:59 |
| 11 | 0.1788 | 27055968 | qtype_calculated_question->calculate_all_expressions( ) | ../question.php:169 |
| 12 | 0.1788 | 27056144 | qtype_calculated_variable_substituter->calculate( $expression = '{a00} + {a01} + {a10} + {a11}', '0', '1' ) | ../question.php:70 |
| 13 | 0.1789 | 27056504 | qtype_calculated_variable_substituter->calculate_raw( $expression = '{a00} + {a01} + {a10} + {a11}' ) | ../question.php:426 |
| ( ! ) Parse error: syntax error, unexpected '{' in /home/daniel/public_html/2moodle/question/type/calculated/question.php(440) : eval()'d code on line 1 | ||||
|---|---|---|---|---|
| Call Stack | ||||
| # | Time | Memory | Function | Location |
| 1 | 0.0008 | 305808 | {main}( ) | ../review.php:0 |
| 2 | 0.1701 | 25752928 | quiz_attempt::create( $attemptid = 7 ) | ../review.php:45 |
| 3 | 0.1701 | 25753424 | quiz_attempt::create_helper( $conditions = array ('id' => 7) ) | ../attemptlib.php:517 |
| 4 | 0.1730 | 26050632 | quiz_attempt->__construct( $attempt = class stdClass { public $id = '7'; public $quiz = '1'; public $userid = '9'; public $attempt = '1'; public $uniqueid = '7'; public $layout = '1,0,2,0,3,0,4,0,5,0,6,0'; public $currentpage = '5'; public $preview = '0'; public $state = 'finished'; public $timestart = '1416585118'; public $timefinish = '1416588082'; public $timemodified = '1416588082'; public $timecheckstate = '0'; public $sumgrades = '5.66667' }, $quiz = class stdClass { public $id = '1'; public $course = '2'; public $name = 'Lista 7C'; public $intro = ''; public $introformat = '1'; public $timeopen = '0'; public $timeclose = '1417139700'; public $timelimit = '0'; public $overduehandling = 'autosubmit'; public $graceperiod = '0'; public $preferredbehaviour = 'deferredfeedback'; public $attempts = '0'; public $attemptonlast = '0'; public $grademethod = '4'; public $decimalpoints = '2'; public $questiondecimalpoints = '-1'; public $reviewattempt = '69904'; public $reviewcorrectness = '16'; public $reviewmarks = '16'; public $reviewspecificfeedback = '16'; public $reviewgeneralfeedback = '16'; public $reviewrightanswer = '16'; public $reviewoverallfeedback = '0'; public $questionsperpage = '1'; public $navmethod = 'free'; public $shufflequestions = '0'; public $shuffleanswers = '1'; public $sumgrades = '6.00000'; public $grade = '10.00000'; public $timecreated = '0'; public $timemodified = '1416583975'; public $password = ''; public $subnet = ''; public $browsersecurity = '-'; public $delay1 = '0'; public $delay2 = '0'; public $showuserpicture = '0'; public $showblocks = '0'; public $completionattemptsexhausted = '0'; public $completionpass = '0'; public $cmid = '3' }, $cm = class stdClass { public $id = '3'; public $course = '2'; public $module = '16'; public $instance = '1'; public $section = '1'; public $idnumber = ''; public $added = '1416569962'; public $score = '0'; public $indent = '0'; public $visible = '1'; public $visibleold = '1'; public $groupmode = '0'; public $groupingid = '0'; public $completion = '0'; public $completiongradeitemnumber = NULL; public $completionview = '0'; public $completionexpected = '0'; public $showdescription = '0'; public $availability = NULL; public $name = 'Lista 7C'; public $modname = 'quiz' }, $course = class stdClass { public $id = '2'; public $category = '1'; public $sortorder = '10001'; public $fullname = 'nananana'; public $shortname = 'aca'; public $idnumber = ''; public $summary = ''; public $summaryformat = '1'; public $format = 'weeks'; public $showgrades = '1'; public $newsitems = '5'; public $startdate = '1421200800'; public $marker = '0'; public $maxbytes = '0'; public $legacyfiles = '0'; public $showreports = '0'; public $visible = '1'; public $visibleold = '1'; public $groupmode = '0'; public $groupmodeforce = '0'; public $defaultgroupingid = '0'; public $lang = ''; public $calendartype = ''; public $theme = ''; public $timecreated = '1421178817'; public $timemodified = '1421178817'; public $requested = '0'; public $enablecompletion = '0'; public $completionnotify = '0'; public $cacherev = '1425928270' }, $loadquestions = ??? ) | ../attemptlib.php:507 |
| 5 | 0.1732 | 26053504 | question_engine::load_questions_usage_by_activity( $qubaid = '7', $db = ??? ) | ../attemptlib.php:487 |
| 6 | 0.1732 | 26053888 | question_engine_data_mapper->load_questions_usage_by_activity( $qubaid = '7' ) | ../lib.php:84 |
| 7 | 0.1734 | 26060160 | question_usage_by_activity::load_from_records( $records = class mysqli_native_moodle_recordset { protected $result = class mysqli_result { public $current_field = NULL; public $field_count = NULL; public $lengths = NULL; public $num_rows = NULL; public $type = NULL }; protected $current = array ('qubaid' => '7', 'contextid' => '44', 'component' => 'mod_quiz', 'preferredbehaviour' => 'deferredfeedback', 'questionattemptid' => '37', 'questionusageid' => '7', 'slot' => '1', 'behaviour' => 'deferredfeedback', 'questionid' => '15', 'variant' => '7', 'maxmark' => '1.0000000', 'minfraction' => '0.0000000', 'maxfraction' => '1.0000000', 'flagged' => '0', 'questionsummary' => 'Analise o programa abaixo e indique qual será a saída apresentada. A saída é um valor numérico inteiro. \n\n/* ------ inicio ------ */ \n\n#include <stdio.h> \n\n \n\nint func1(int x){ \n\n return x + x; \n\n} \n\n \n\nint main(){ \n\n int a = 2, t = 3; \n\n a = func1(a); \n\n a = func1(a + t); \n\n printf("%d\\n",a); \n\n} \n\n/* ------ fim ------ */ \n\n ', 'rightanswer' => '14,00', 'responsesummary' => '14', 'timemodified' => '1416588082', 'attemptstepid' => '94', 'sequencenumber' => '1', 'state' => 'complete', 'fraction' => NULL, 'timecreated' => '1416585182', 'userid' => '9', 'name' => 'answer', 'value' => '14') }, $qubaid = '7' ) | ../datalib.php:418 |
| 8 | 0.1734 | 26065056 | question_attempt::load_from_records( $records = class mysqli_native_moodle_recordset { protected $result = class mysqli_result { public $current_field = NULL; public $field_count = NULL; public $lengths = NULL; public $num_rows = NULL; public $type = NULL }; protected $current = array ('qubaid' => '7', 'contextid' => '44', 'component' => 'mod_quiz', 'preferredbehaviour' => 'deferredfeedback', 'questionattemptid' => '37', 'questionusageid' => '7', 'slot' => '1', 'behaviour' => 'deferredfeedback', 'questionid' => '15', 'variant' => '7', 'maxmark' => '1.0000000', 'minfraction' => '0.0000000', 'maxfraction' => '1.0000000', 'flagged' => '0', 'questionsummary' => 'Analise o programa abaixo e indique qual será a saída apresentada. A saída é um valor numérico inteiro. \n\n/* ------ inicio ------ */ \n\n#include <stdio.h> \n\n \n\nint func1(int x){ \n\n return x + x; \n\n} \n\n \n\nint main(){ \n\n int a = 2, t = 3; \n\n a = func1(a); \n\n a = func1(a + t); \n\n printf("%d\\n",a); \n\n} \n\n/* ------ fim ------ */ \n\n ', 'rightanswer' => '14,00', 'responsesummary' => '14', 'timemodified' => '1416588082', 'attemptstepid' => '94', 'sequencenumber' => '1', 'state' => 'complete', 'fraction' => NULL, 'timecreated' => '1416585182', 'userid' => '9', 'name' => 'answer', 'value' => '14') }, $questionattemptid = '37', $observer = class question_engine_unit_of_work { protected $quba = class question_usage_by_activity { protected $id = '7'; protected $preferredbehaviour = 'deferredfeedback'; protected $context = class context_module { protected $_id = 44; protected $_contextlevel = 70; protected $_instanceid = '3'; protected $_path = '/1/3/18/44'; protected $_depth = '4' }; protected $owningcomponent = 'mod_quiz'; protected $questionattempts = array (); protected $observer = ... }; protected $modified = FALSE; protected $attemptsmodified = array (); protected $attemptsadded = array (); protected $stepsadded = array (); protected $stepsmodified = array (); protected $stepsdeleted = array () }, $preferredbehaviour = 'deferredfeedback' ) | ../questionusage.php:862 |
| 9 | 0.1787 | 27051944 | qtype_calculated_question->apply_attempt_state( $step = class question_attempt_step_read_only { private ${question_attempt_step}:id = '93'; private ${question_attempt_step}:state = class question_state_todo { }; private ${question_attempt_step}:fraction = NULL; private ${question_attempt_step}:timecreated = '1416585118'; private ${question_attempt_step}:userid = '9'; private ${question_attempt_step}:data = array ('_separators' => ',$.', '_var_a' => '2', '_var_t' => '3'); private ${question_attempt_step}:files = array () } ) | ../questionattempt.php:1415 |
| 10 | 0.1787 | 27052040 | qtype_calculated_question_helper::apply_attempt_state( $question = class qtype_calculated_question { public $datasetloader = class qtype_calculated_dataset_loader { protected $questionid = '15'; protected $itemsavailable = NULL }; public $vs = class qtype_calculated_variable_substituter { protected $values = array ('a' => '2', 't' => '3'); protected $decimalpoint = '.'; protected $search = array (0 => '{a}', 1 => '{t}'); protected $safevalue = array (0 => '(2)', 1 => '(3)'); protected $prettyvalue = array (0 => '2', 1 => '3'); public $replace = array () }; public $synchronised = '0'; public $answers = array (23 => class qtype_numerical_answer { public $tolerance = 0; public $tolerancetype = '1'; public $id = '23'; public $answer = '{a00} + {a01} + {a10} + {a11}'; public $answerformat = '2'; public $fraction = '1.0000000'; public $feedback = ''; public $feedbackformat = '1'; public $correctanswerlength = '0'; public $correctanswerformat = '1' }); public $unitdisplay = '3'; public $unitgradingtype = '0'; public $unitpenalty = '0.1000000'; public $ap = class qtype_numerical_answer_processor { protected $units = array (); protected $decsep = '.'; protected $thousandssep = ','; protected $unitsbefore = FALSE; protected $regex = NULL }; public $shownumcorrect = FALSE; public $id = '15'; public $category = '4'; public $contextid = '18'; public $parent = '0'; public $qtype = class qtype_calculated { public $wizardpagesnumber = 3; protected $fileoptions = array ('subdirs' => TRUE, 'maxfiles' => -1, 'maxbytes' => 0) }; public $name = 'Calcular resultado I'; public $questiontext = '<p>Analise o programa abaixo e indique qual será a saída apresentada. A saída é um valor numérico inteiro. </p>\n<p><span style="font-family: \'courier new\', courier, monospace;">/* ------ inicio ------ */ </span></p>\n<p class="p1"><span class="s1" style="font-family: \'courier new\', courier, monospace;">#include <stdio.h></span><span style="font-family: \'courier new\', courier, monospace; line-height: 1.231;"> </span></p>\n<p class="p1"><span class="s1" style="font-family: \'courier new\', courier, monospace;">int main(){</span></p>\n<p class="p1"><span class="s1" style="font-family: \'courier new\', courier, monospace;"> int a[2][2], soma;</span></p>\n<p class="p1"><span class="s1" style="font-family: \'courier new\', courier, monospace;"> a[0][0] = {a00};</span></p>\n<p class="p1"><span class="s1" style="font-family: \'courier new\', courier, monospace;"><span> a[0][1] = {a01};</span></span></p>\n<p class="p1"><span class="s1" style="font-family: \'courier new\', courier, monospace;"><span><span> a[1][0] = {a10};</span></span></span> </p>\n<p class="p1"><span class="s1" style="font-family: \'courier new\', courier, monospace;"><span> a[1][1] = {a11};</span></span></p>\n<p class="p1"><span class="s1" style="font-family: \'courier new\', courier, monospace;"><span> soma = <span>a[0][0] + <span>a[0][1] + <span>a[1][0] + <span>a[1][1];</span></span></span></span></span></span></p>\n<p class="p1"><span class="s1" style="font-family: \'courier new\', courier, monospace;"><span style="line-height: 1.231;"> printf("%d\\n",soma);</span></span></p>\n<p class="p1"><span class="s1" style="font-family: \'courier new\', courier, monospace;">}</span></p>\n<p class="p1"><span class="s1" style="font-family: \'courier new\', courier, monospace;">/* ------ fim ------ */</span></p>\n<p class="p1"> </p>'; public $questiontextformat = '1'; public $generalfeedback = ''; public $generalfeedbackformat = '1'; public $defaultmark = 1; public $length = '1'; public $penalty = 0.3333333; public $stamp = 'moodle.ufsc.br+141121122949+3ebsIM'; public $version = 'moodle.ufsc.br+141126163415+ltpDMm'; public $hidden = '0'; public $timecreated = '1416572989'; public $timemodified = '1417019655'; public $createdby = '21'; public $modifiedby = '21'; public $hints = array () }, $step = class question_attempt_step_read_only { private ${question_attempt_step}:id = '93'; private ${question_attempt_step}:state = class question_state_todo { }; private ${question_attempt_step}:fraction = NULL; private ${question_attempt_step}:timecreated = '1416585118'; private ${question_attempt_step}:userid = '9'; private ${question_attempt_step}:data = array ('_separators' => ',$.', '_var_a' => '2', '_var_t' => '3'); private ${question_attempt_step}:files = array () } ) | ../question.php:59 |
| 11 | 0.1788 | 27055968 | qtype_calculated_question->calculate_all_expressions( ) | ../question.php:169 |
| 12 | 0.1788 | 27056144 | qtype_calculated_variable_substituter->calculate( $expression = '{a00} + {a01} + {a10} + {a11}', '0', '1' ) | ../question.php:70 |
| 13 | 0.1789 | 27056504 | qtype_calculated_variable_substituter->calculate_raw( $expression = '{a00} + {a01} + {a10} + {a11}' ) | ../question.php:426 |
If I comment the exception throw, the warnings are shown and the page is rendered correctly.
Could you please help us?Kind regards,
Daniel