3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(strtolower('Déjàvü') === strtolower('déJàVü')); // true var_dump(strtolower('Déjàvü') === strtolower('DÉJÀVÜ')); // false var_dump(strtolower('déJàVü') === strtolower('DÉJÀVÜ')); // false var_dump(strcasecmp('Déjàvü', 'déJàVü')); // true var_dump(strcasecmp('Déjàvü', 'DÉJÀVÜ'));// false var_dump(strcasecmp('déJàVü', 'DÉJÀVÜ')); // false
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/AQ93s
function name:  (null)
number of ops:  52
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   INIT_FCALL                                               'var_dump'
          1        INIT_FCALL                                               'strtolower'
          2        SEND_VAL                                                 'D%C3%A9j%C3%A0v%C3%BC'
          3        DO_ICALL                                         $0      
          4        INIT_FCALL                                               'strtolower'
          5        SEND_VAL                                                 'd%C3%A9J%C3%A0V%C3%BC'
          6        DO_ICALL                                         $1      
          7        IS_IDENTICAL                                     ~2      $0, $1
          8        SEND_VAL                                                 ~2
          9        DO_ICALL                                                 
    5    10        INIT_FCALL                                               'var_dump'
         11        INIT_FCALL                                               'strtolower'
         12        SEND_VAL                                                 'D%C3%A9j%C3%A0v%C3%BC'
         13        DO_ICALL                                         $4      
         14        INIT_FCALL                                               'strtolower'
         15        SEND_VAL                                                 'D%C3%89J%C3%80V%C3%9C'
         16        DO_ICALL                                         $5      
         17        IS_IDENTICAL                                     ~6      $4, $5
         18        SEND_VAL                                                 ~6
         19        DO_ICALL                                                 
    6    20        INIT_FCALL                                               'var_dump'
         21        INIT_FCALL                                               'strtolower'
         22        SEND_VAL                                                 'd%C3%A9J%C3%A0V%C3%BC'
         23        DO_ICALL                                         $8      
         24        INIT_FCALL                                               'strtolower'
         25        SEND_VAL                                                 'D%C3%89J%C3%80V%C3%9C'
         26        DO_ICALL                                         $9      
         27        IS_IDENTICAL                                     ~10     $8, $9
         28        SEND_VAL                                                 ~10
         29        DO_ICALL                                                 
    8    30        INIT_FCALL                                               'var_dump'
         31        INIT_FCALL                                               'strcasecmp'
         32        SEND_VAL                                                 'D%C3%A9j%C3%A0v%C3%BC'
         33        SEND_VAL                                                 'd%C3%A9J%C3%A0V%C3%BC'
         34        DO_ICALL                                         $12     
         35        SEND_VAR                                                 $12
         36        DO_ICALL                                                 
    9    37        INIT_FCALL                                               'var_dump'
         38        INIT_FCALL                                               'strcasecmp'
         39        SEND_VAL                                                 'D%C3%A9j%C3%A0v%C3%BC'
         40        SEND_VAL                                                 'D%C3%89J%C3%80V%C3%9C'
         41        DO_ICALL                                         $14     
         42        SEND_VAR                                                 $14
         43        DO_ICALL                                                 
   10    44        INIT_FCALL                                               'var_dump'
         45        INIT_FCALL                                               'strcasecmp'
         46        SEND_VAL                                                 'd%C3%A9J%C3%A0V%C3%BC'
         47        SEND_VAL                                                 'D%C3%89J%C3%80V%C3%9C'
         48        DO_ICALL                                         $16     
         49        SEND_VAR                                                 $16
         50        DO_ICALL                                                 
         51      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
148.6 ms | 1433 KiB | 16 Q