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<?php $haystack = array ( '01.02', '01.03', '02.05', '02.07' ); $matches = preg_grep ('/cpb-grid-col-[0-9]/', $haystack); print_r ($matches);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/dP61Q
function name:  (null)
number of ops:  10
compiled vars:  !0 = $haystack, !1 = $matches
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, <array>
    9     1        INIT_FCALL                                               'preg_grep'
          2        SEND_VAL                                                 '%2Fcpb-grid-col-%5B0-9%5D%2F'
          3        SEND_VAR                                                 !0
          4        DO_ICALL                                         $3      
          5        ASSIGN                                                   !1, $3
   11     6        INIT_FCALL                                               'print_r'
          7        SEND_VAR                                                 !1
          8        DO_ICALL                                                 
          9      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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