Echo index of array before \t - php

Question

I have a txt file of trivia questions. I have split them into 2 array indexes and are seperated with a \t. I need to print those questions to the user in order and I don't know how to display part of the array index before the first \t.
<?php
session_start();
$file = "trivQuestions.txt";
$result = file($file);
$_SESSION['question'] = array();
$_SESSION['correctAnswers'] = array();
var_dump($_SESSION['question']);
foreach ( $result as $content ) {
$question = explode("\t", $content);
// echo $question[0];
//echos all questions
var_dump($question[0]);
//echo $question[0];
//echos all answers
//echo $question[1];
}
if (isset($_POST['submit'])){
}else{
echo "Welcome to trivia! Enter your answer below.";
}
?>

Answer 1

As your file has a question and answer separated by a tab on each new line in the file, you will have to split your file by each new line first. After that you will be able to loop trough each line of the file and split it by a tab.
From here you could add you split into a new array or do whatever you want to do with it.
In the code below I tried to demonstrate how such a split with loop would work, according to your description.
$file = "trivQuestions.txt";
$result = file($file);
// before you split by \t, you have to split by each new line.
// this will get you an array with each question + answer as one value
// PHP_EOL stands for end of line. PHP tries to get the end of line by using the systems default one. you can adjust that, if it a specific
// linebreak like "\n" or something else you know of.
$lines = explode(PHP_EOL, $result);
// var_dump($lines); <- with this you would see that you are on the right way
// setup a questions array to fill it up later
$questions = array();
// lets loop trough the lines
foreach ($lines as $line) {
// now you can explode on tab
$entry = explode("\t", $line);
// according to you description the question comes first, the answer later split by tab
// so we fill the questions array
$questions[] = $entry[0]; // the 0 element will be the question. if you want to adress the answer, use $entry[1]. maybe you want to add this in an other array for checks?
}
// this will give you the first question
var_dump($questions[0]);
If I have missed something or misunderstood parts of your question, let me know. Maybe I can adjust this code, to make it work as you need it to be.