3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $student_comment_new = 'PDE+PEwuSW50cm9kdWN0aW9uIC0gUGFnZSAxIG9mIDI+TVkgUFJFVEVORCBTRUNPTkQgPGUuMT4='; $fixed = base64_decode($student_comment_new); echo $fixed . "\n\n"; //Decode the entire comment $comment_cltxt = base64_decode($student_comment_new); echo $comment_cltxt . "\n\n"; //get the comment number. $comment_nr = explode('><L.', $comment_cltxt)[0]; $comment_nr = explode('<', $comment_nr)[1]; //get the comment end-text $comment_nr_string = '<' . $comment_nr . '>'; $comment_end_string = '<e.' . $comment_nr . '>'; echo $comment_nr . "\n"; echo $comment_nr_string . "\n"; echo $comment_end_string . "\n"; //get the comment text itself $pos1 = strlen($comment_nr_string); $pos2 = strlen($comment_end_string); $comment_text = substr($comment_cltxt, $pos1, -$pos2); echo $comment_text . "\n";
based on oRQMi
Output for 5.5.0 - 7.2.0
<1><L.Introduction - Page 1 of 2>MY PRETEND SECOND <e.1> <1><L.Introduction - Page 1 of 2>MY PRETEND SECOND <e.1> 1 <1> <e.1> <L.Introduction - Page 1 of 2>MY PRETEND SECOND