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<?php $str = 'cream 100g'; $p = strcspn($str, '0123456789'); var_dump($p);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/UWu8O
function name:  (null)
number of ops:  10
compiled vars:  !0 = $str, !1 = $p
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'cream+100g'
    5     1        INIT_FCALL                                               'strcspn'
          2        SEND_VAR                                                 !0
          3        SEND_VAL                                                 '0123456789'
          4        DO_ICALL                                         $3      
          5        ASSIGN                                                   !1, $3
    6     6        INIT_FCALL                                               'var_dump'
          7        SEND_VAR                                                 !1
          8        DO_ICALL                                                 
          9      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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