3v4l.org

run code in 300+ PHP versions simultaneously
<?php $body = "I love My Dog. I love My cat. What a cat."; $count = substr_count($body, "My cat"); print_r( $count);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/jeT4h
function name:  (null)
number of ops:  10
compiled vars:  !0 = $body, !1 = $count
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 'I+love+My+Dog.+I+love+My+cat.+What+a+cat.'
    3     1        INIT_FCALL                                               'substr_count'
          2        SEND_VAR                                                 !0
          3        SEND_VAL                                                 'My+cat'
          4        DO_ICALL                                         $3      
          5        ASSIGN                                                   !1, $3
    5     6        INIT_FCALL                                               'print_r'
          7        SEND_VAR                                                 !1
          8        DO_ICALL                                                 
          9      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
145.51 ms | 1394 KiB | 17 Q