3v4l.org

run code in 500+ PHP versions simultaneously
<?php $foo = str_repeat("9", strlen(PHP_INT_MAX) + 1); var_dump($foo); settype($foo, "integer"); var_dump($foo);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/LSBfU
function name:  (null)
number of ops:  18
compiled vars:  !0 = $foo
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                                   'str_repeat'
          1        SEND_VAL                                                     '9'
          2        STRLEN                                               ~1      9223372036854775807
          3        ADD                                                  ~2      ~1, 1
          4        SEND_VAL                                                     ~2
          5        DO_ICALL                                             $3      
          6        ASSIGN                                                       !0, $3
    4     7        INIT_FCALL                                                   'var_dump'
          8        SEND_VAR                                                     !0
          9        DO_ICALL                                                     
    5    10        INIT_FCALL                                                   'settype'
         11        SEND_REF                                                     !0
         12        SEND_VAL                                                     'integer'
         13        DO_ICALL                                                     
    6    14        INIT_FCALL                                                   'var_dump'
         15        SEND_VAR                                                     !0
         16        DO_ICALL                                                     
         17      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


preferences:
159.49 ms | 2098 KiB | 16 Q