3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x=5; //globle scope function myTest() { // using x inside this function is generate an error echo "variable x inside function is:$x"; } myTest(); ?>
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/MfCMq
function name:  (null)
number of ops:  4
compiled vars:  !0 = $x
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 5
    7     1        INIT_FCALL                                               'mytest'
          2        DO_FCALL                                      0          
    8     3      > RETURN                                                   1

Function mytest:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/MfCMq
function name:  myTest
number of ops:  4
compiled vars:  !0 = $x
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   NOP                                                      
          1        FAST_CONCAT                                      ~1      'variable+x+inside+function+is%3A', !0
          2        ECHO                                                     ~1
    6     3      > RETURN                                                   null

End of function mytest

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
156.02 ms | 1396 KiB | 14 Q