<?php
require_once dirname(__FILE__) . '/phplatex.php';
echo texify('$\\(x = {-b \\pm \\sqrt{b^2-4ac} \\over 2a}\\)$');
?>
<img src="texImages/A1.png"><img src="texImages/a.svg">
function bbmath_bbcode($a, &$text)
{
$text = preg_replace_callback('|\\[tex\\](.*?)\\[/tex\\]|', function ($m) {
return texify($m[1]);
}, $text);
}
$replace = false;
$replace = texify('$' . $mathTex . '$');
if ($replace === false) {
$replace = '<img src="http://latex.codecogs.com/gif.latex?' . rawurlencode($mathTex) . '">';
}
$task = substr($task, 0, $pos) . $replace . substr($task, $pos2 + strlen($second));
}
$pos = strpos($task, $first, $pos + strlen($first) + strlen($second));
}
$pos = strpos($solution, $first);
while ($pos !== false) {
$pos2 = strpos($solution, $second);
if ($pos2 !== false) {
$mathTex = substr($solution, $pos + strlen($first), $pos2 - $pos - strlen($first));
$replace = false;
$replace = texify('$' . $mathTex . '$');
if ($replace === false) {
$replace = '<img src="http://latex.codecogs.com/gif.latex?' . rawurlencode($mathTex) . '">';
}
$solution = substr($solution, 0, $pos) . $replace . substr($solution, $pos2 + strlen($second));
}
$pos = strpos($solution, $first, $pos + strlen($first) + strlen($second));
}
$formId = isset($subexercise['formId']) ? $subexercise['formId'] : null;
$form = Form::createForm($formId, $exerciseId, $solution, $task, isset($subexercise['type']) ? $subexercise['type'] : null);
$choiceText = $subexercise['choice'];
$choices = array();
foreach ($choiceText as $tempKey => $choiceData) {
$choice = new Choice();
$choice->SetText($choiceData);
$choices[$tempKey] = $choice;
