3v4l.org

run code in 300+ PHP versions simultaneously
<?php error_reporting(E_ALL); $foo = 42; var_dump(strlen($foo)); var_dump(ctype_digit($foo)); var_dump(htmlspecialchars($foo));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/VBU05
function name:  (null)
number of ops:  21
compiled vars:  !0 = $foo
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'error_reporting'
          1        SEND_VAL                                                 32767
          2        DO_ICALL                                                 
    5     3        ASSIGN                                                   !0, 42
    6     4        INIT_FCALL                                               'var_dump'
          5        STRLEN                                           ~3      !0
          6        SEND_VAL                                                 ~3
          7        DO_ICALL                                                 
    7     8        INIT_FCALL                                               'var_dump'
          9        INIT_FCALL                                               'ctype_digit'
         10        SEND_VAR                                                 !0
         11        DO_ICALL                                         $5      
         12        SEND_VAR                                                 $5
         13        DO_ICALL                                                 
    8    14        INIT_FCALL                                               'var_dump'
         15        INIT_FCALL                                               'htmlspecialchars'
         16        SEND_VAR                                                 !0
         17        DO_ICALL                                         $7      
         18        SEND_VAR                                                 $7
         19        DO_ICALL                                                 
         20      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
156.04 ms | 1395 KiB | 21 Q