3v4l.org

run code in 500+ PHP versions simultaneously
<?php ini_set('zlib.output_compression', 'On'); $v = ini_get('zlib.output_compression'); header('Content-Type: image/svg+xml'); var_dump($v, ini_get('zlib.output_compression'));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/2tV5T
function name:  (null)
number of ops:  19
compiled vars:  !0 = $v
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                                   'ini_set'
          1        SEND_VAL                                                     'zlib.output_compression'
          2        SEND_VAL                                                     'On'
          3        DO_ICALL                                                     
    4     4        INIT_FCALL                                                   'ini_get'
          5        SEND_VAL                                                     'zlib.output_compression'
          6        DO_ICALL                                             $2      
          7        ASSIGN                                                       !0, $2
    5     8        INIT_FCALL                                                   'header'
          9        SEND_VAL                                                     'Content-Type%3A+image%2Fsvg%2Bxml'
         10        DO_ICALL                                                     
    6    11        INIT_FCALL                                                   'var_dump'
         12        SEND_VAR                                                     !0
         13        INIT_FCALL                                                   'ini_get'
         14        SEND_VAL                                                     'zlib.output_compression'
         15        DO_ICALL                                             $5      
         16        SEND_VAR                                                     $5
         17        DO_ICALL                                                     
         18      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


preferences:
204.04 ms | 2286 KiB | 17 Q