3v4l.org

run code in 500+ PHP versions simultaneously
<?php var_dump(substr_compare("template", "_emplate", -8)); var_dump(substr_compare("template", "_emplate", -8, 8));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/8co5P
function name:  (null)
number of ops:  18
compiled vars:  none
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    1     0  E >   INIT_FCALL                                                   'var_dump'
          1        INIT_FCALL                                                   'substr_compare'
          2        SEND_VAL                                                     'template'
          3        SEND_VAL                                                     '_emplate'
          4        SEND_VAL                                                     -8
          5        DO_ICALL                                             $0      
          6        SEND_VAR                                                     $0
          7        DO_ICALL                                                     
    2     8        INIT_FCALL                                                   'var_dump'
          9        INIT_FCALL                                                   'substr_compare'
         10        SEND_VAL                                                     'template'
         11        SEND_VAL                                                     '_emplate'
         12        SEND_VAL                                                     -8
         13        SEND_VAL                                                     8
         14        DO_ICALL                                             $2      
         15        SEND_VAR                                                     $2
         16        DO_ICALL                                                     
         17      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


preferences:
216.62 ms | 2922 KiB | 15 Q