I have seen this functionality in moodle where they upload .txt files and parse data and create question bank . Some questions have three options as well
Sample :-
What is php? A. Php is a language. B. Php creates HTML. C. Php is fun. D. none of these. ANSWER: D Which is YII-2? A. Framework. B. Tool. C. None of these ANSWER: A
Till now I have tried this to parse it but I don’t know what exactly to be done to achieve it for bulk uploading .
txt_file = file_get_contents('path/to/file.txt');
$rows = explode("n", $txt_file);
array_shift($rows);
foreach($rows as $row => $data)
{
}
Array I am trying to acquire
[
[
'question' => 'Php is a language.',
'options' => [
'A' => 'Php is a language.',
'B' => 'Php creates HTML.',
'C' => 'Php is fun.',
'D' => 'none of these.'
],
'answer' => 'D'
],
.....
]
Sample file:- File code fbSObnlghQkqroEk4lrQ
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Answer
Multiple answer logic
edit – forgiving version
Try (?mi)^(?!h*(?:[A-Z]h*.|ANSWERh*:))h*(?<question>S.*?)??h*s*^h*Ah*.h*(?<A>.*?)h*s*(?:^h*Bh*.h*(?<B>.*?)h*(?:s*^h*Ch*.h*(?<C>.*?)h*(?:s*^h*Dh*.h*(?<D>.*?)h*(?:s*^h*Eh*.h*(?<E>.*?)h*)?)?)?)?s*^h*ANSWERh*:h*(?<answer1>[A-F])(?:h*,h*(?<answer2>[A-F]))?
match in loop, create single array from parts,
append to larger array.
not need ‘options’ but after match can create sub-array from groups A-E
then add to single array.
repeat on next match.
<?php
// Your code here!
$regex = '~(?mi)^(?!h*(?:[A-Z]h*.|ANSWERh*:))h*(?<question>S.*?)??h*s*^h*Ah*.h*(?<A>.*?)h*s*(?:^h*Bh*.h*(?<B>.*?)h*(?:s*^h*Ch*.h*(?<C>.*?)h*(?:s*^h*Dh*.h*(?<D>.*?)h*(?:s*^h*Eh*.h*(?<E>.*?)h*)?)?)?)?s*^h*ANSWERh*:h*(?<answer1>[A-F])(?:h*,h*(?<answer2>[A-F]))?~';
// Declare a string
$nameString = 'What is php?
A. Php is a language.
B. Php creates HTML.
C. Php is fun.
D. none of these.
ANSWER: D
Linux is
A. A Graphic Software
B. A Driver
C. A Line Controller Software
D. An Operating System
ANSWER: D
Which feature helps in compress and contain the collection of files in to one
A. Zip
B. Shortcut
C. Icon
D. Extract
ANSWER: A
Which is YII-2?
A. Framework.
B. Tool.
C. None of these
ANSWER: A,B';
// Use preg_match_all() function
$QA = []; // All questions
if ( preg_match_all($regex, $nameString, $matches, PREG_SET_ORDER) ) {
foreach ($matches as $match) {
$qa = []; // Single question
$qa['question'] = $match['question'];
$qa['A'] = $match['A'];
if ( array_key_exists( 'B', $match ) && $match['B'] ) $qa['B'] = $match['B'];
if ( array_key_exists( 'C', $match ) && $match['C'] ) $qa['C'] = $match['C'];
if ( array_key_exists( 'D', $match ) && $match['D'] ) $qa['D'] = $match['D'];
if ( array_key_exists( 'E', $match ) && $match['E'] ) $qa['E'] = $match['E'];
$qa['answer1'] = $match['answer1'];
if ( array_key_exists( 'answer2', $match ) && $match['answer2'] ) $qa['answer2'] = $match['answer2'];
array_push( $QA, $qa );
}
}
else {
echo("Could not find a single question");
}
print_R ( $QA);
?>
Output
Array
(
[0] => Array
(
[question] => What is php
[A] => Php is a language.
[B] => Php creates HTML.
[C] => Php is fun.
[D] => none of these.
[answer1] => D
)
[1] => Array
(
[question] => Linux is
[A] => A Graphic Software
[B] => A Driver
[C] => A Line Controller Software
[D] => An Operating System
[answer1] => D
)
[2] => Array
(
[question] => Which feature helps in compress and contain the collection of files in to one
[A] => Zip
[B] => Shortcut
[C] => Icon
[D] => Extract
[answer1] => A
)
[3] => Array
(
[question] => Which is YII-2
[A] => Framework.
[B] => Tool.
[C] => None of these
[answer1] => A
[answer2] => B
)
)