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Can I disable warnings for particular foreach statements and more specifically the “invalid argument supplied” warning?
p.s. I want a foreach that when passed null, instead of throwing an error, will just not execute.
Alternative, type agnostic, using a typecast:
Would convert a NULL into an empty array, or a integer/string into an array with a single entry. This is sometimes advisable if you traverse flexible data structures (PHP is a dynamic language after all). The failure method is advisable for catching invalid data (should rather throw an error however).