3v4l.org

run code in 300+ PHP versions simultaneously
<?php $haystack = 'this is a verygood school of sachin'; $pattern = 'sch'; $match = strpos($haystack, $pattern); echo $match; ?>
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/QdcbR
function name:  (null)
number of ops:  9
compiled vars:  !0 = $haystack, !1 = $pattern, !2 = $match
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, 'this+is+a+verygood+school+of+sachin'
    3     1        ASSIGN                                                   !1, 'sch'
    5     2        INIT_FCALL                                               'strpos'
          3        SEND_VAR                                                 !0
          4        SEND_VAR                                                 !1
          5        DO_ICALL                                         $5      
          6        ASSIGN                                                   !2, $5
    6     7        ECHO                                                     !2
    7     8      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
146.89 ms | 1394 KiB | 15 Q