Unable to receive array elements passed in PHP -

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i trying send array 1 php file in following manner:

$question_records=findquestions($db,$student_id,$story_id,$call_number);                 echo count($question_records).'<br/>';                 $i=0;                 foreach($question_records $record=>$question)                 {                     $questions_file[$i]=$question['file_name'].'_'.$question['concept_tested'];                     $questions_id[$i]=$question['question_id'];                     echo "array elements:</br>";                                     echo $questions_file[$i]. "</br>";                     $i++;                 }

output:

array elements: q1_comp q2_vocab q3_cri

function makecall

makecall($call_id,$phone,$questions_file,$questions_id,$student_id,$story,$call_number);      function makecall($call_id,$phone,$questions_file,$questions_id,$student_id,$story,$call_number){         $questions_file= urldecode(http_build_query($questions_file));                 echo "echo new stmt questions_file \n";                 echo $questions_file;                 $questions_id= urldecode(http_build_query($questions_id));                 echo "echo new stmt questions_id \n";                 echo $questions_id;     }     $url = $server.'/startcall.php?call_id='.$call_id.'&phone='.$phone.'&questions_id='.$questions_id.'&questions_file='.$questions_file.'&student_id='.$student_id.'&story='                 .$story.'&call_number='.$call_number.'&question_number=0&response=0&count_english=0&count_hindi=0';     echo '<redirect method="get">startcall.php?'.$url.'</redirect>';

startcall.php

    $questions_id=array('questions_id' => $_request['questions_id']);      $questions_file=array('questions_file' =>$_request['questions_file']);     echo "for questions id in startcall.php";     echo 'output1'.$questions_file.'</br>';     echo 'output2'.$questions_file[0];

the output getting is

output1array output2

however, want able access array elements (q1_comp, q2_vocab, q3_cri). know why isn't working. have tried , need work asap. thanks!

try following in startcall.php

echo 'output1'.print_r($questions_file,true).'</br>';

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