3v4l.org

run code in 300+ PHP versions simultaneously
<?php function splitName($name) { return [ 'forename' => strtok($name, ' '), 'surname' => substr($name, ($pos = strpos( $name, ' ' )) === false ? 0 : $pos + 1) ]; } var_dump(splitName('Daniel Griffiths'));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/9L8vm
function name:  (null)
number of ops:  7
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   11     0  E >   INIT_FCALL                                               'var_dump'
          1        INIT_FCALL                                               'splitname'
          2        SEND_VAL                                                 'Daniel+Griffiths'
          3        DO_FCALL                                      0  $0      
          4        SEND_VAR                                                 $0
          5        DO_ICALL                                                 
          6      > RETURN                                                   1

Function splitname:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 15, Position 2 = 17
Branch analysis from position: 15
1 jumps found. (Code = 42) Position 1 = 19
Branch analysis from position: 19
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 17
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/9L8vm
function name:  splitName
number of ops:  24
compiled vars:  !0 = $name, !1 = $pos
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
    6     1        INIT_FCALL                                               'strtok'
          2        SEND_VAR                                                 !0
          3        SEND_VAL                                                 '+'
          4        DO_ICALL                                         $2      
          5        INIT_ARRAY                                       ~3      $2, 'forename'
    7     6        INIT_FCALL                                               'substr'
          7        SEND_VAR                                                 !0
          8        INIT_FCALL                                               'strpos'
          9        SEND_VAR                                                 !0
         10        SEND_VAL                                                 '+'
         11        DO_ICALL                                         $4      
         12        ASSIGN                                           ~5      !1, $4
         13        TYPE_CHECK                                    4          ~5
         14      > JMPZ                                                     ~6, ->17
         15    >   QM_ASSIGN                                        ~7      0
         16      > JMP                                                      ->19
         17    >   ADD                                              ~8      !1, 1
         18        QM_ASSIGN                                        ~7      ~8
         19    >   SEND_VAL                                                 ~7
         20        DO_ICALL                                         $9      
         21        ADD_ARRAY_ELEMENT                                ~3      $9, 'surname'
         22      > RETURN                                                   ~3
    9    23*     > RETURN                                                   null

End of function splitname

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
179.78 ms | 1399 KiB | 22 Q