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<?php ini_set('mbstring.internal_encoding', 'UTF-8'); mb_regex_encoding('UTF-8'); var_dump(preg_split('|\B|', "abc")); var_dump(mb_split('\B', "abc"));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/fb4XN
function name:  (null)
number of ops:  22
compiled vars:  none
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   2     0  E >   INIT_FCALL                                               'ini_set'
         1        SEND_VAL                                                 'mbstring.internal_encoding'
         2        SEND_VAL                                                 'UTF-8'
         3        DO_ICALL                                                 
   3     4        INIT_FCALL                                               'mb_regex_encoding'
         5        SEND_VAL                                                 'UTF-8'
         6        DO_ICALL                                                 
   5     7        INIT_FCALL                                               'var_dump'
         8        INIT_FCALL                                               'preg_split'
         9        SEND_VAL                                                 '%7C%5CB%7C'
        10        SEND_VAL                                                 'abc'
        11        DO_ICALL                                         $2      
        12        SEND_VAR                                                 $2
        13        DO_ICALL                                                 
   6    14        INIT_FCALL                                               'var_dump'
        15        INIT_FCALL                                               'mb_split'
        16        SEND_VAL                                                 '%5CB'
        17        SEND_VAL                                                 'abc'
        18        DO_ICALL                                         $4      
        19        SEND_VAR                                                 $4
        20        DO_ICALL                                                 
        21      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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