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<?php $a = array("red", "reddish", "re", "red diamond"); $red = array_keys(preg_grep("/red/", $a)); print_r($red); ?>
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/iNnQR
function name:  (null)
number of ops:  13
compiled vars:  !0 = $a, !1 = $red
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, <array>
    3     1        INIT_FCALL                                               'array_keys'
          2        INIT_FCALL                                               'preg_grep'
          3        SEND_VAL                                                 '%2Fred%2F'
          4        SEND_VAR                                                 !0
          5        DO_ICALL                                         $3      
          6        SEND_VAR                                                 $3
          7        DO_ICALL                                         $4      
          8        ASSIGN                                                   !1, $4
    4     9        INIT_FCALL                                               'print_r'
         10        SEND_VAR                                                 !1
         11        DO_ICALL                                                 
    5    12      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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