008+ prompt> ASAN:SIGSEGV
009+ =================================================================
010+ ==7370==ERROR: AddressSanitizer: SEGV on unknown address 0x7fbb87820080 (pc 0x0000046f4604 bp 0x7fffe3d444b0 sp 0x7fffe3d43ae0 T0)
011+ #0 0x46f4603 (/opt/php-src/sapi/phpdbg/phpdbg+0x46f4603)
012+ #1 0x4fc2d0e (/opt/php-src/sapi/phpdbg/phpdbg+0x4fc2d0e)
013+ #2 0x524d60c (/opt/php-src/sapi/phpdbg/phpdbg+0x524d60c)
014+ #3 0x451627e (/opt/php-src/sapi/phpdbg/phpdbg+0x451627e)
015+ #4 0x52155ba (/opt/php-src/sapi/phpdbg/phpdbg+0x52155ba)
016+ #5 0x531c7e3 (/opt/php-src/sapi/phpdbg/phpdbg+0x531c7e3)
017+ #6 0x531b590 (/opt/php-src/sapi/phpdbg/phpdbg+0x531b590)
018+ #7 0x523a5d7 (/opt/php-src/sapi/phpdbg/phpdbg+0x523a5d7)
019+ #8 0x51aff9e (/opt/php-src/sapi/phpdbg/phpdbg+0x51aff9e)
008- prompt> [Breaking on watchpoint $a]
009- Old value:
010- New value: aa
011- >00005: $a[1] = "b";
012- 00006:
013- prompt> [Breaking on watchpoint $a]
014- Old value: aa
015- New value: ab
016- >00006:
017- prompt> [$a has been removed, removing watchpoint]
018- [Script ended normally]
019- prompt>
020+ #9 0x7fbb8c82182f (/lib/x86_64-linux-gnu/libc.so.6+0x2082f)
021+ #10 0x45a5f8 (/opt/php-src/sapi/phpdbg/phpdbg+0x45a5f8)
022+
023+ AddressSanitizer can not provide additional info.
024+ ==7370==ABORTING