My PHP web app is crashing upon calling pg_connect when running on my Mac OS X machine ( it does not crash from a RHEL8 server ).

It's only happening when:

• Connecting to a PostgreSQL 15 database server and
• When running in Apache HTTPD (through CLI it works fine).

Meaning the script works when I run it from the CLI and it fully works (CLI and Apache HTTPD) when connecting to another PostgreSQL server running PostgreSQL 9.0 (it only crashes when attempting to connect to a PostgreSQL 15 server).

On my local machine I'm running PHP 7.4.33

When I run the crashing script in Apache HTTPD, the error_log shows me this:

[Sat Nov 09 12:25:42.609490 2024] [core:notice] [pid 39732] AH00052: child pid 51781 exit signal Segmentation fault (11)

The script is extremely simple:

<?php
$connString="host=<host> port=<port> user=<username> password=<password> dbname=<dbname> sslmode=disable";
$conn = pg_connect($connString);
echo "conn: [". print_r($conn)."]";
?>

The output of phpinfo() is as follows (only including the relevant pgsql parts):

pgsql
PostgreSQL Support enabled
PostgreSQL(libpq) Version 16.3
PostgreSQL(libpq) PostgreSQL 16.3 on aarch64-apple-darwin23.4.0, compiled by Apple clang version 15.0.0 (clang-1500.3.9.4), 64-bit
Multibyte character support enabled
SSL support enabled
Active Persistent Links 0
Active Links 0

The error logs don't give me any info besides the segmentation fault. I have tried with both sslmode=disable and without to no avail.

I have tried this against 2 different sets of PostgreSQL v15.x servers (one a 15.8 and another on 15.9) and they both give the same results.

I have tried this with the following PHP versions and they all give the same result for all of them:

• 5.6
• 7.1
• 7.2
• 7.3
• 7.4
• 8.0
• 8.1
• 8.4
• 8.5-dev

Are there any other troubleshooting I can do to pinpoint the exact problem or any additional info I can give ?

thank you