PHP errors not showing up in CloudWatch

[pbayly-kax]

Similar to this issue

I have a brand new version of bref installed and I am running the basic 'Welcome' app.

I have purposely broken the PHP in an attempt to see the PHP errors in the logs in CloudWatch. Unfortunately no errors appear in CloudWatch.

# serverless.yml
service: app-test

provider:
    name: aws
    region: eu-west-1

plugins:
    - ./vendor/bref/bref

functions:
    api:
        handler: index.php
        description: ''
        runtime: php-82-fpm
        timeout: 28 # in seconds (API Gateway has a timeout of 29 seconds)
        events:
            -   httpApi: '*'

# Exclude files from deployment
package:
    patterns:
        - '!node_modules/**'
        - '!tests/**'

# index.php
<?php

xxx_require 'vendor/autoload.php'; // Assuming you have installed the AWS SDK for PHP via Composer

?>

# composer.json

{
    "require": {
        "bref/bref": "^2.0"
    }
}

# sls --version
Framework Core: 3.31.0
Plugin: 6.2.3
SDK: 4.3.2 

Log output:

❯ sls logs -f api --stage stage
INIT_START Runtime Version: provided:al2.v17    Runtime Version ARN: arn:aws:lambda:eu-west-1::runtime:f35635a04216ba4e6a0e74d3c2db080d443709a8f3f2e71fedf54a4f8756705d
[29-May-2023 15:46:55] NOTICE: [pool default] 'user' directive is ignored when FPM is not running as root
[29-May-2023 15:46:55] NOTICE: fpm is running, pid 10
[29-May-2023 15:46:55] NOTICE: ready to handle connections
START
END Duration: 10.81 ms (init: 303.41 ms) Memory Used: 69 MB

[mnapoli]

By default PHP running in PHP FPM does not log anything to stderr. This is the same behavior on any hosting server.

Your options are:

• use a framework or a library that logs errors automatically
• customize php.ini to display errors in the HTTP response (not the logs), but be careful that may expose sensitive information to visitors
• set a error handler and log errors yourself

[pbayly-kax]

Thanks @mnapoli

I just enabled logs in the php.ini and now they are writing correctly to cloudwatch logs.

; php/conf.d/php.ini
log_errors = on

❯ sls logs -f api --stage stage --tail
INIT_START Runtime Version: provided:al2.v19    Runtime Version ARN: arn:aws:lambda:eu-west-1::runtime:684f243b579ceaa7cf8623a17c9a6fadeb7968ae27dc4f4ffcab596e8c76bd39
[30-May-2023 10:14:56] NOTICE: [pool default] 'user' directive is ignored when FPM is not running as root
START
[30-May-2023 10:14:56] NOTICE: fpm is running, pid 10
[30-May-2023 10:14:56] NOTICE: ready to handle connections
NOTICE: PHP message: PHP Parse error:  syntax error, unexpected single-quoted string "vendor/autoload.php" in /var/task/index.php on line 3
END Duration: 12.84 ms (init: 433.97 ms) Memory Used: 69 MB

I am used to running Laravel on bref but making it possible to quickly deploy small PHP functions to Lambda using bref is a game changer for creating FAAS. It is great not to have to think about apache / nginx, server patching, over / under provisioning etc.

[eroltoker]

@pbayly-kax trying to reproduce what you're doing here. I dropped a php.ini file in the project root like this

; php/conf.d/php.ini
log_errors = on

but not luck. Something else i need to do?