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<?php $utf8string = "zzz\n3D打印第一互动平台-----南极熊3D打印网www.nanjixiong.com"; $var = '3D打印第一互动平台-----南极熊3D打印网www.nanjixiong.com'; $pos = strpos($utf8string, $var); if ($pos!==false) { echo substr($utf8string, 0, $pos); }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 9, Position 2 = 15
Branch analysis from position: 9
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 15
filename:       /in/uFFQU
function name:  (null)
number of ops:  16
compiled vars:  !0 = $utf8string, !1 = $var, !2 = $pos
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'zzz%0A3D%E6%89%93%E5%8D%B0%E7%AC%AC%E4%B8%80%E4%BA%92%E5%8A%A8%E5%B9%B3%E5%8F%B0-----%E5%8D%97%E6%9E%81%E7%86%8A3D%E6%89%93%E5%8D%B0%E7%BD%91www.nanjixiong.com'
    5     1        ASSIGN                                                   !1, '3D%E6%89%93%E5%8D%B0%E7%AC%AC%E4%B8%80%E4%BA%92%E5%8A%A8%E5%B9%B3%E5%8F%B0-----%E5%8D%97%E6%9E%81%E7%86%8A3D%E6%89%93%E5%8D%B0%E7%BD%91www.nanjixiong.com'
    6     2        INIT_FCALL                                               'strpos'
          3        SEND_VAR                                                 !0
          4        SEND_VAR                                                 !1
          5        DO_ICALL                                         $5      
          6        ASSIGN                                                   !2, $5
    7     7        TYPE_CHECK                                  1018          !2
          8      > JMPZ                                                     ~7, ->15
    8     9    >   INIT_FCALL                                               'substr'
         10        SEND_VAR                                                 !0
         11        SEND_VAL                                                 0
         12        SEND_VAR                                                 !2
         13        DO_ICALL                                         $8      
         14        ECHO                                                     $8
    9    15    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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