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<?php $array = [ 0 => [ 'val' => 3, 'param' => 2 ], 1 => [ 'val' => 3, 'param' => 10 ] ]; echo max(array_map( array_column($a, 'param'), $array ));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/LZrXm
function name:  (null)
number of ops:  14
compiled vars:  !0 = $array, !1 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, <array>
   13     1        INIT_FCALL                                               'max'
          2        INIT_FCALL                                               'array_map'
   14     3        INIT_FCALL                                               'array_column'
          4        SEND_VAR                                                 !1
          5        SEND_VAL                                                 'param'
          6        DO_ICALL                                         $3      
          7        SEND_VAR                                                 $3
   15     8        SEND_VAR                                                 !0
          9        DO_ICALL                                         $4      
         10        SEND_VAR                                                 $4
         11        DO_ICALL                                         $5      
         12        ECHO                                                     $5
   16    13      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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