Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename: /in/WVjhK
function name: (null)
number of ops: 9
compiled vars: !0 = $checkString
line #* E I O op fetch ext return operands
-------------------------------------------------------------------------------------
3 0 E > INIT_FCALL 'substr'
1 SEND_VAL 'cus_7389237298u'
2 SEND_VAL 0
3 SEND_VAL 4
4 DO_ICALL $1
5 ASSIGN !0, $1
4 6 IS_IDENTICAL ~3 !0, 'cus_'
7 ECHO ~3
8 > RETURN 1
Generated using Vulcan Logic Dumper, using php 8.0.0