3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = '0311'; $expiry_y = substr($x, 2); $expiry_m = substr($x, 0, 2); echo $expiry_y; echo "\n\n"; echo $expiry_m;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/0E9Lq
function name:  (null)
number of ops:  16
compiled vars:  !0 = $x, !1 = $expiry_y, !2 = $expiry_m
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '0311'
    5     1        INIT_FCALL                                               'substr'
          2        SEND_VAR                                                 !0
          3        SEND_VAL                                                 2
          4        DO_ICALL                                         $4      
          5        ASSIGN                                                   !1, $4
    8     6        INIT_FCALL                                               'substr'
          7        SEND_VAR                                                 !0
          8        SEND_VAL                                                 0
          9        SEND_VAL                                                 2
         10        DO_ICALL                                         $6      
         11        ASSIGN                                                   !2, $6
   11    12        ECHO                                                     !1
   13    13        ECHO                                                     '%0A%0A'
   15    14        ECHO                                                     !2
         15      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
144.1 ms | 1398 KiB | 15 Q