3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump( filter_var( 'http://www.youtube.com', FILTER_VALIDATE_URL ), filter_var( 'tp://www.youtube.com', FILTER_VALIDATE_URL ), filter_var( 'youtube.com', FILTER_VALIDATE_URL ));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/p5nS3
function name:  (null)
number of ops:  21
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'var_dump'
    5     1        INIT_FCALL                                               'filter_var'
          2        SEND_VAL                                                 'http%3A%2F%2Fwww.youtube.com'
          3        FETCH_CONSTANT                                   ~0      '%C2%A0FILTER_VALIDATE_URL'
          4        SEND_VAL                                                 ~0
          5        DO_ICALL                                         $1      
          6        SEND_VAR                                                 $1
    6     7        INIT_FCALL                                               'filter_var'
          8        SEND_VAL                                                 'tp%3A%2F%2Fwww.youtube.com'
          9        FETCH_CONSTANT                                   ~2      '%C2%A0FILTER_VALIDATE_URL'
         10        SEND_VAL                                                 ~2
         11        DO_ICALL                                         $3      
         12        SEND_VAR                                                 $3
    7    13        INIT_FCALL                                               'filter_var'
         14        SEND_VAL                                                 'youtube.com'
         15        FETCH_CONSTANT                                   ~4      '%C2%A0FILTER_VALIDATE_URL'
         16        SEND_VAL                                                 ~4
         17        DO_ICALL                                         $5      
         18        SEND_VAR                                                 $5
         19        DO_ICALL                                                 
         20      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
160.63 ms | 1395 KiB | 17 Q