What is a line length "soft limit" and how do I interpret this in the PSR-2 convention?

What is a line length "soft limit" and how do I interpret this in the PSR-2 convention?

php coding-style conventions

php

Should I save a path with or without a trailing slash at the end, what's the convention

php conventions

php

Is it good practice to use serialize in PHP in order to store data into the DB?

php serialization standards conventions

php

PHP vs. JavaScript switch indentation

php javascript switch-statement conventions

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What are some useful PHP Idioms?

php conventions

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