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<?php $arr = array( array('iso'=>'A3+', 'height'=>329, 'width'=>483, 'descrip'=>'A3+ (329 x 483 mm)'), array('iso'=>'A3_EXTRA', 'height'=>322, 'width'=>445, 'descrip'=>'A3 EXTRA (322 x 445 mm)'), array('iso'=>'A3_SUPER', 'height'=>305, 'width'=>508, 'descrip'=>'A3 SUPER (305 x 508 mm)'), array('iso'=>'SUPER_A3', 'height'=>305, 'width'=>487, 'descrip'=>'SUPER A3 (305 x 487 mm)'), array('iso'=>'A4_EXTRA', 'height'=>235, 'width'=>322, 'descrip'=>'A4 EXTRA (235 x 322 mm)'), array('iso'=>'A4_SUPER', 'height'=>229, 'width'=>322, 'descrip'=>'A4 SUPER (229 x 322 mm)'), array('iso'=>'SUPER_A4', 'height'=>227, 'width'=>356, 'descrip'=>'SUPER A4 (227 x 356 mm)'), array('iso'=>'A4_LONG', 'height'=>210, 'width'=>348, 'descrip'=>'A4 LONG (210 x 348 mm)'), array('iso'=>'F4', 'height'=>210, 'width'=>330, 'descrip'=>'F4 (210 x 330 mm)'), array('iso'=>'SO_B5_EXTRA', 'height'=>202, 'width'=>276, 'descrip'=>'SO B5 EXTRA (202 x 276 mm)'), array('iso'=>'A5_EXTRA', 'height'=>173, 'width'=>235, 'descrip'=>'A5 EXTRA (173 x 235 mm)'), array('iso'=>'ANSI_E', 'height'=>863.6, 'width'=>1117.6, 'descrip'=>'ANSI E (863.6 x 1117.6 mm)'), array('iso'=>'ANSI_D', 'height'=>558.8, 'width'=>863.6, 'descrip'=>'ANSI D (558.8 x 863.6 mm)'), array('iso'=>'ANSI_C', 'height'=>431.8, 'width'=>558.8, 'descrip'=>'ANSI C (431.8 x 558.8 mm)'), array('iso'=>'ANSI_B', 'height'=>279.4, 'width'=>431.8, 'descrip'=>'ANSI B (279.4 x 431.8 mm)'), array('iso'=>'ANSI_A', 'height'=>215.9, 'width'=>279.4, 'descrip'=>'ANSI A (215.9 x 279.4 mm)'), ); $filter = "A4"; $filt = array_filter($arr, function($e) { strcasecmp(substr($e['iso'], 0, strlen($filter)), $filter) === 0; }); var_dump($filt);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/KP0Na
function name:  (null)
number of ops:  12
compiled vars:  !0 = $arr, !1 = $filter, !2 = $filt
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
   21     1        ASSIGN                                                   !1, 'A4'
   22     2        INIT_FCALL                                               'array_filter'
          3        SEND_VAR                                                 !0
          4        DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2FKP0Na%3A22%240'
          5        SEND_VAL                                                 ~5
          6        DO_ICALL                                         $6      
          7        ASSIGN                                                   !2, $6
   23     8        INIT_FCALL                                               'var_dump'
          9        SEND_VAR                                                 !2
         10        DO_ICALL                                                 
         11      > RETURN                                                   1

Function %00%7Bclosure%7D%2Fin%2FKP0Na%3A22%240:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/KP0Na
function name:  {closure}
number of ops:  15
compiled vars:  !0 = $e, !1 = $filter
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   22     0  E >   RECV                                             !0      
          1        INIT_FCALL                                               'strcasecmp'
          2        INIT_FCALL                                               'substr'
          3        FETCH_DIM_R                                      ~2      !0, 'iso'
          4        SEND_VAL                                                 ~2
          5        SEND_VAL                                                 0
          6        STRLEN                                           ~3      !1
          7        SEND_VAL                                                 ~3
          8        DO_ICALL                                         $4      
          9        SEND_VAR                                                 $4
         10        SEND_VAR                                                 !1
         11        DO_ICALL                                         $5      
         12        IS_IDENTICAL                                     ~6      $5, 0
         13        FREE                                                     ~6
         14      > RETURN                                                   null

End of function %00%7Bclosure%7D%2Fin%2FKP0Na%3A22%240

Generated using Vulcan Logic Dumper, using php 8.0.0

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171.63 ms | 941 KiB | 22 Q