[php-src] Issue #12536: Embedded api question: zend_catch not working?

Issue: https://github.com/php/php-src/issues/12536 Author: chibinz ### Description Hi, I am trying to create a small application embedding a php interpreter, but somehow it's not working as expected (zend_catch not catching an explicitly thrown exception). I compiled php with clang -g and the following configure options: ``` ./configure --prefix=$targetdir/php-$suffix \ --disable-all \ --disable-cgi \ --disable-shared \ --enable-static \ --enable-debug-assertions \ --enable-option-checking=fatal \ --enable-embed=static \ --enable-calendar=static \ --enable-ctype=static \ --enable-filter=static \ --enable-phar=static \ --enable-tokenizer=static \ --enable-fileinfo=static \ --enable-shmop=static \ --enable-sockets=static \ --enable-posix=static \ --enable-session=static \ --enable-opcache=static \ --enable-fuzzer \ --without-pcre-jit \ --with-pic ``` The application C code: ``` #include "sapi/embed/php_embed.h" int main(int argc, char **argv) { PHP_EMBED_START_BLOCK(argc, argv) zval a; int retval = 0; zend_try { retval = zend_eval_string("throw new Exception('qwerty');", &a, "example"); } zend_catch { printf("exception\n"); } zend_end_try(); printf("retval: %d\n", retval); PHP_EMBED_END_BLOCK() } ``` Resulted in this output: ``` retval: 0 [Fri Oct 27 10:20:17 2023] Script: '-' /tmp/php-aflplusplus/Zend/zend_objects.c(186) : Freeing 0x00007f819d45e0c0 (152 bytes), script=- === Total 1 memory leaks detected === ``` But I expected this output instead: ``` exception retval: -1 ``` Also, I wonder if there's any documentation on internal zend_* functions for embedding php within another c application? Thanks in advance! ### PHP Version php-8.2.7RC1 ### Operating System Ubuntu 22.04