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Bugs & Features
<?php $t = 'В 14.00 возле горсовета собрались сотни людей, которые выступают за единую Украину и против ввода российских вой..'; $t2 = mb_substr($t, 0, strlen($t)); var_dump(strlen($t2));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/MJHaU
function name:  (null)
number of ops:  13
compiled vars:  !0 = $t, !1 = $t2
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   2     0  E >   ASSIGN                                                   !0, '%D0%92+14.00+%D0%B2%D0%BE%D0%B7%D0%BB%D0%B5+%D0%B3%D0%BE%D1%80%D1%81%D0%BE%D0%B2%D0%B5%D1%82%D0%B0+%D1%81%D0%BE%D0%B1%D1%80%D0%B0%D0%BB%D0%B8%D1%81%D1%8C+%D1%81%D0%BE%D1%82%D0%BD%D0%B8+%D0%BB%D1%8E%D0%B4%D0%B5%D0%B9%2C+%D0%BA%D0%BE%D1%82%D0%BE%D1%80%D1%8B%D0%B5+%D0%B2%D1%8B%D1%81%D1%82%D1%83%D0%BF%D0%B0%D1%8E%D1%82+%D0%B7%D0%B0+%D0%B5%D0%B4%D0%B8%D0%BD%D1%83%D1%8E+%D0%A3%D0%BA%D1%80%D0%B0%D0%B8%D0%BD%D1%83+%D0%B8+%D0%BF%D1%80%D0%BE%D1%82%D0%B8%D0%B2+%D0%B2%D0%B2%D0%BE%D0%B4%D0%B0+%D1%80%D0%BE%D1%81%D1%81%D0%B8%D0%B9%D1%81%D0%BA%D0%B8%D1%85+%D0%B2%D0%BE%D0%B9..'
   3     1        INIT_FCALL                                               'mb_substr'
         2        SEND_VAR                                                 !0
         3        SEND_VAL                                                 0
         4        STRLEN                                           ~3      !0
         5        SEND_VAL                                                 ~3
         6        DO_ICALL                                         $4      
         7        ASSIGN                                                   !1, $4
   4     8        INIT_FCALL                                               'var_dump'
         9        STRLEN                                           ~6      !1
        10        SEND_VAL                                                 ~6
        11        DO_ICALL                                                 
        12      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 7.3.0