3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array( 0 => array( 'key1' => '123', 'key2' => 'values we', 'key3' => 'do not', 'key4' => 'care about' ), 1 => array( 'key1' => '124', 'key2' => 'values we', 'key3' => 'do not', 'key4' => 'care about' ), 2 => array( 'key1' => '125', 'key2' => 'values we', 'key3' => 'do not', 'key4' => 'care about' ) ); echo max(array_column($array, 'key1'));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/U8Re6
function name:  (null)
number of ops:  10
compiled vars:  !0 = $array
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
   24     1        INIT_FCALL                                               'max'
          2        INIT_FCALL                                               'array_column'
          3        SEND_VAR                                                 !0
          4        SEND_VAL                                                 'key1'
          5        DO_ICALL                                         $2      
          6        SEND_VAR                                                 $2
          7        DO_ICALL                                         $3      
          8        ECHO                                                     $3
          9      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
167.82 ms | 1394 KiB | 17 Q