PHP developer here, so of course foreach, which arguably is one of the most useful structures even in object-oriented PHP (you can really easily iterate through arrays of objects, for example, because PHP treats almost anything as an array, and the most straightforward way to get at its elements, hence often the fastest, is foreach).
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PHP developer here, so of course foreach, which arguably is one of the most useful structures even in object-oriented PHP (you can really easily iterate through arrays of objects, for example, because PHP treats almost anything as an array, and the most straightforward way to get at its elements, hence often the fastest, is foreach).