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
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