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<?php function str_contains_old(string $hay, string $needle): bool { return mb_stripos($hay, $needle) !== false; } $str1 = 'Hello world!'; $str2 = 'hello'; var_dump(str_contains_old($str1, $str2)); // gives bool(true) // str_contains var_dump(str_contains($str1, $str2)); // gives bool(false) $str1 = 'Część'; $str2 = 'cZĘŚĆ'; var_dump(str_contains_old($str1, $str2)); // gives bool(true) // str_contains var_dump(str_contains($str1, $str2)); // gives bool(false) $str1 = 'Część'; $str2 = 'czesc'; var_dump(str_contains_old($str1, $str2)); // gives bool(false) // str_contains var_dump(str_contains($str1, $str2)); // gives bool(false)
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/lprsk
function name:  (null)
number of ops:  40
compiled vars:  !0 = $str1, !1 = $str2
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    8     0  E >   ASSIGN                                                       !0, 'Hello+world%21'
    9     1        ASSIGN                                                       !1, 'hello'
   10     2        INIT_FCALL                                                   'var_dump'
          3        INIT_FCALL                                                   'str_contains_old'
          4        SEND_VAR                                                     !0
          5        SEND_VAR                                                     !1
          6        DO_FCALL                                          0  $4      
          7        SEND_VAR                                                     $4
          8        DO_ICALL                                                     
   12     9        INIT_FCALL                                                   'var_dump'
         10        FRAMELESS_ICALL_2                str_contains        ~6      !0, !1
         11        SEND_VAL                                                     ~6
         12        DO_ICALL                                                     
   14    13        ASSIGN                                                       !0, 'Cz%C4%99%C5%9B%C4%87'
   15    14        ASSIGN                                                       !1, 'cZ%C4%98%C5%9A%C4%86'
   16    15        INIT_FCALL                                                   'var_dump'
         16        INIT_FCALL                                                   'str_contains_old'
         17        SEND_VAR                                                     !0
         18        SEND_VAR                                                     !1
         19        DO_FCALL                                          0  $10     
         20        SEND_VAR                                                     $10
         21        DO_ICALL                                                     
   18    22        INIT_FCALL                                                   'var_dump'
         23        FRAMELESS_ICALL_2                str_contains        ~12     !0, !1
         24        SEND_VAL                                                     ~12
         25        DO_ICALL                                                     
   20    26        ASSIGN                                                       !0, 'Cz%C4%99%C5%9B%C4%87'
   21    27        ASSIGN                                                       !1, 'czesc'
   22    28        INIT_FCALL                                                   'var_dump'
         29        INIT_FCALL                                                   'str_contains_old'
         30        SEND_VAR                                                     !0
         31        SEND_VAR                                                     !1
         32        DO_FCALL                                          0  $16     
         33        SEND_VAR                                                     $16
         34        DO_ICALL                                                     
   24    35        INIT_FCALL                                                   'var_dump'
         36        FRAMELESS_ICALL_2                str_contains        ~18     !0, !1
         37        SEND_VAL                                                     ~18
         38        DO_ICALL                                                     
         39      > RETURN                                                       1

Function str_contains_old:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/lprsk
function name:  str_contains_old
number of ops:  11
compiled vars:  !0 = $hay, !1 = $needle
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   RECV                                                 !0      
          1        RECV                                                 !1      
    5     2        INIT_FCALL                                                   'mb_stripos'
          3        SEND_VAR                                                     !0
          4        SEND_VAR                                                     !1
          5        DO_ICALL                                             $2      
          6        TYPE_CHECK                                      1018  ~3      $2
          7        VERIFY_RETURN_TYPE                                           ~3
          8      > RETURN                                                       ~3
    6     9*       VERIFY_RETURN_TYPE                                           
         10*     > RETURN                                                       null

End of function str_contains_old

Generated using Vulcan Logic Dumper, using php 8.5.0


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