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PHP 可迭代对象
tryphp_iterables
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<!DOCTYPE html> <html> <body> <?php function printIterable(iterable $x) { foreach($x as $item) { echo $item; } } // Called with an array: printIterable(["a", "b", "c"]); // Called with an object: $iterator = new ArrayIterator(["d", "e", "f"]); printIterable($iterator); ?> </body> </html>
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