Re: array coalesce operator concept

Hello :-), Thank you for the proposal. I have a question though: How is it different from: * foreach ($foo ?: [] as $bar) { … } if $foo does not exist, * foreach ((array) $foo as $bar) { … } if $foo is not an array. I understand your issue, but you can probably type your data with iterable, Generator, array, Iterator… Also, I am not sure that ??$x really means if (is_array($x)) { … }. Regards. On 11.07.17 17:02, Mark Shust wrote:

Hello, I wanted to garnish feedback on a RFC proposal. This is just a concept at this point, and is inspired by the null coalesce operator. Code will error if a non-array value is passed through a looping feature. For example, this code: <?php $foo = "abc"; foreach ($foo as $bar) { echo $bar; } will result in the error: PHP Warning: Invalid argument supplied for foreach() in test.php on line 3 To prevent this, the logical solution is to wrap this in an is_array check: <?php $foo = "abc"; if (is_array($foo)) { foreach ($foo as $bar) {

     echo $bar;

} } This code runs successfully and does not error out. For a syntactic sugar/improvement, this can be shorthand for executing the loop instead of wrapping the block within an is_array check: <?php $foo = "abc"; foreach (??$foo as $bar) { echo $bar; } Let me know your thoughts. Cheers, Mark