==426== Memcheck, a memory error detector
==426== Copyright (C) 2002-2024, and GNU GPL'd, by Julian Seward et al.
==426== Using Valgrind-3.24.0 and LibVEX; rerun with -h for copyright info
==426== Command: php test.php
==426== 
==426== Invalid read of size 8
==426==    at 0x46B5DC: zend_observer_fcall_end (in /usr/bin/php)
==426==    by 0x437FFB: execute_ex (in /usr/bin/php)
==426==    by 0x58D91AB: ic_call_function (in /usr/lib64/php/modules/ioncube_loader.so)
==426==  Address 0x0 is not stack'd, malloc'd or (recently) free'd
==426== 
==426== 
==426== Process terminating with default action of signal 11 (SIGSEGV)
==426==  Access not within mapped region at address 0x0
==426==    at 0x46B5DC: zend_observer_fcall_end (in /usr/bin/php)
==426==    by 0x437FFB: execute_ex (in /usr/bin/php)
==426==    by 0x58D91AB: ic_call_function (in /usr/lib64/php/modules/ioncube_loader.so)
==426==  If you believe this happened as a result of a stack
==426==  overflow in your program's main thread (unlikely but
==426==  possible), you can try to increase the size of the
==426==  main thread stack using the --main-stacksize= flag.
==426==  The main thread stack size used in this run was 8388608.
==426== 
==426== HEAP SUMMARY:
==426==     in use at exit: 10,961,514 bytes in 80,720 blocks
==426==   total heap usage: 170,290 allocs, 89,570 frees, 55,233,437 bytes allocated
==426== 
==426== LEAK SUMMARY:
==426==    definitely lost: 51,128 bytes in 1,596 blocks
==426==    indirectly lost: 115 bytes in 5 blocks
==426==      possibly lost: 6,017,612 bytes in 44,280 blocks
==426==    still reachable: 4,892,659 bytes in 34,839 blocks
==426==         suppressed: 0 bytes in 0 blocks
==426== Rerun with --leak-check=full to see details of leaked memory
==426== 
==426== For lists of detected and suppressed errors, rerun with: -s
==426== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 0 from 0)