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<?php $str = 'prefix.column alias'; $pos = strpos ($str, '.'); $prefix = substr ($str, 0, $pos); $name = substr($str, $pos + 1); $posr = strrpos ($name, ' '); $alias = substr ($name, $posr + 1); var_dump ($prefix, $name, $alias); //echo substr ($str, $pos + 1, $posr - $pos - 1);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/2YuR4
function name:  (null)
number of ops:  35
compiled vars:  !0 = $str, !1 = $pos, !2 = $prefix, !3 = $name, !4 = $posr, !5 = $alias
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'prefix.column+alias'
    5     1        INIT_FCALL                                               'strpos'
          2        SEND_VAR                                                 !0
          3        SEND_VAL                                                 '.'
          4        DO_ICALL                                         $7      
          5        ASSIGN                                                   !1, $7
    7     6        INIT_FCALL                                               'substr'
          7        SEND_VAR                                                 !0
          8        SEND_VAL                                                 0
          9        SEND_VAR                                                 !1
         10        DO_ICALL                                         $9      
         11        ASSIGN                                                   !2, $9
    9    12        INIT_FCALL                                               'substr'
         13        SEND_VAR                                                 !0
         14        ADD                                              ~11     !1, 1
         15        SEND_VAL                                                 ~11
         16        DO_ICALL                                         $12     
         17        ASSIGN                                                   !3, $12
   11    18        INIT_FCALL                                               'strrpos'
         19        SEND_VAR                                                 !3
         20        SEND_VAL                                                 '+'
         21        DO_ICALL                                         $14     
         22        ASSIGN                                                   !4, $14
   13    23        INIT_FCALL                                               'substr'
         24        SEND_VAR                                                 !3
         25        ADD                                              ~16     !4, 1
         26        SEND_VAL                                                 ~16
         27        DO_ICALL                                         $17     
         28        ASSIGN                                                   !5, $17
   15    29        INIT_FCALL                                               'var_dump'
         30        SEND_VAR                                                 !2
         31        SEND_VAR                                                 !3
         32        SEND_VAR                                                 !5
         33        DO_ICALL                                                 
   17    34      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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