3v4l.org

run code in 300+ PHP versions simultaneously
<?php $n=100; // i want {100} printed out echo "{$n}"; // oh right, let's escape it then echo "\{$n}"; // oh right, let's escape it then echo "\{$n\}";
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/3Jigt
function name:  (null)
number of ops:  12
compiled vars:  !0 = $n
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 100
    5     1        CAST                                          6  ~2      !0
          2        ECHO                                                     ~2
    7     3        ROPE_INIT                                     3  ~4      '%5C%7B'
          4        ROPE_ADD                                      1  ~4      ~4, !0
          5        ROPE_END                                      2  ~3      ~4, '%7D'
          6        ECHO                                                     ~3
    9     7        ROPE_INIT                                     3  ~7      '%5C%7B'
          8        ROPE_ADD                                      1  ~7      ~7, !0
          9        ROPE_END                                      2  ~6      ~7, '%5C%7D'
         10        ECHO                                                     ~6
         11      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
140.9 ms | 1392 KiB | 13 Q