3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo "<script>"; echo json_encode('"</script><script>alert("XSS");</script>"'); echo "</script>";
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/LDraS
function name:  (null)
number of ops:  7
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   ECHO                                                     '%3Cscript%3E'
    5     1        INIT_FCALL                                               'json_encode'
          2        SEND_VAL                                                 '%22%3C%2Fscript%3E%3Cscript%3Ealert%28%22XSS%22%29%3B%3C%2Fscript%3E%22'
          3        DO_ICALL                                         $0      
          4        ECHO                                                     $0
    6     5        ECHO                                                     '%3C%2Fscript%3E'
          6      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
149.42 ms | 1394 KiB | 15 Q