[SM-1266] Review PHP docs

[mzieniukbw]

🎟️ Tracking

https://bitwarden.atlassian.net/browse/SM-1266

📔 Objective

Review PHP language docs. Fixed some of the typos too that prevented the example to work correctly.

⏰ Reminders before review

• Contributor guidelines followed
• All formatters and local linters executed and passed
• Written new unit and / or integration tests where applicable
• Protected functional changes with optionality (feature flags)
• Used internationalization (i18n) for all UI strings
• CI builds passed
• Communicated to DevOps any deployment requirements
• Updated any necessary documentation (Confluence, contributing docs) or informed the documentation team

🦮 Reviewer guidelines

• 👍 (:+1:) or similar for great changes
• 📝 (:memo:) or ℹ️ (:information_source:) for notes or general info
• ❓ (:question:) for questions
• 🤔 (:thinking:) or 💭 (:thought_balloon:) for more open inquiry that's not quite a confirmed issue and could potentially benefit from discussion
• 🎨 (:art:) for suggestions / improvements
• ❌ (:x:) or ⚠️ (:warning:) for more significant problems or concerns needing attention
• 🌱 (:seedling:) or ♻️ (:recycle:) for future improvements or indications of technical debt
• ⛏ (:pick:) for minor or nitpick changes

[github-actions[bot]]

Checkmarx One – Scan Summary & Details – 6537ff0d-2e6f-489b-803d-5cf1c51640ac

No New Or Fixed Issues Found

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 57.98%. Comparing base (7ee604f) to head (4a973df). Report is 27 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #878   +/-   ##
=======================================
  Coverage   57.98%   57.98%           
=======================================
  Files         197      197           
  Lines       13651    13651           
=======================================
  Hits         7916     7916           
  Misses       5735     5735           

:umbrella: View full report in Codecov by Sentry.
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[mzieniukbw]

Superseded by #1032 and #1036