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<?php $str = 'this is a test'; echo substr( $str, 0, strpos( $str, ' ' ) );
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/kC5mr
function name:  (null)
number of ops:  12
compiled vars:  !0 = $str
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'this+is+a+test'
    4     1        INIT_FCALL                                               'substr'
          2        SEND_VAR                                                 !0
          3        SEND_VAL                                                 0
          4        INIT_FCALL                                               'strpos'
          5        SEND_VAR                                                 !0
          6        SEND_VAL                                                 '+'
          7        DO_ICALL                                         $2      
          8        SEND_VAR                                                 $2
          9        DO_ICALL                                         $3      
         10        ECHO                                                     $3
         11      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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