fix php 8.3 deprecations

fix php 8.3 deprecations

Upgrade deprecated actions/cache in workflow to v4

Upgraded actions/cache to v4 in accordance with notice of v1/v2 package closing down.

https://github.blog/changelog/2024-12-05-notice-of-upcoming-releases-and-breaking-changes-for-github-actions/#actions-cache-v1-v2-and-actions-toolkit-cache-package-closing-down

1.1.30

Prevent php81 deprecation warnings

Silence PHP 8.1 deprecation warnings

Silence PHP 8.1 deprecation warnings

php 8 support

1.1.28

replaced deprecated create_function

PHP 7.4 compatibility

PHP 7.4 compatibility

Fixes 7.2 incompatibility

Fix counting on null in sfValidatorConfigHandler

More minor 7.1 incompatibilities

Fixed issue with forms and parsing the max_upload_size using PHP 7.1

Fixes minor 7.1 incompatibilities

Add php7.1, remove hhvm (#13)

HHVM build errors about

```
The command "sudo apt-get install -y hhvm" failed and exited with 100 during .
```

https://travis-ci.org/hostnet/symfony1/jobs/231082063

PHP7 consistent ordering for splitHttpAcceptHeader

In PHP7 sorting order is changed, splitHttpAcceptHeader was
relying on unspecified behaviour of arsort(). Sorting order
is now made explicit.