Array and string offset access syntax with curly braces is deprecated

Question

I've just updated my php version to 7.4, and i noticed this error pops up:

Array and string offset access syntax with curly braces is deprecated

here is part of my code which is triggering the above error:

public function getRecordID(string $zoneID, string $type = '', string $name = ''): string
{
    $records = $this->listRecords($zoneID, $type, $name);
    if (isset($records->result{0}->id)) {
        return $records->result{0}->id;
    }
    return false;
}

there are few libraries in my project which is using curly braces to get individual characters inside a string, whats the best way to change the syntax issue?

@AbraCadaver how is this duplicate of what you have suggested? — Pezhvak
– Pezhvak, Commented Dec 3, 2019 at 18:26
What do you mean by "best way to fix this issue"? What exactly keeps you from simply fixing this issue by changing the code? — Nico Haase
– Nico Haase, Commented Dec 6, 2020 at 11:42
@NicoHaase I guess he doesn't know what the right way to change it is? Which is probably why he's here asking on stackoverflow. — Dtipson
– Dtipson, Commented Feb 4, 2021 at 15:03
The specific answer in @Abra's canonical can be found here: stackoverflow.com/a/59158847/2943403 — mickmackusa
– mickmackusa ♦, Commented Dec 15, 2021 at 13:56
Having "collection answers" is all right. Using them to close a specific answer is an abuse. — Your Common Sense
– Your Common Sense, Commented Dec 31, 2022 at 8:31

Pezhvak · Accepted Answer · 2020-12-01 22:37:26Z

461

It's really simple to fix the issue, however keep in mind that you should fork and commit your changes for each library you are using in their repositories to help others as well.

Let's say you have something like this in your code:

$str = "test";
echo($str{0});

since PHP 7.4 curly braces method to get individual characters inside a string has been deprecated, so change the above syntax into this:

$str = "test";
echo($str[0]);

Fixing the code in the question will look something like this:

public function getRecordID(string $zoneID, string $type = '', string $name = ''): string
{
    $records = $this->listRecords($zoneID, $type, $name);
    if (isset($records->result[0]->id)) {
        return $records->result[0]->id;
    }
    return false;
}

edited Dec 1, 2020 at 22:37

answered Dec 3, 2019 at 13:47

Pezhvak

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6 Comments

Henk Poley Over a year ago

Do you happen to know when the $string{$pos} syntax was introduced in PHP? It must be ancient.

Henk Poley Over a year ago

Ah, technically it was to be deprecated in PHP 5.1 (June 2008), but they forgot to add the code to notify people 😅: wiki.php.net/rfc/…

helle Over a year ago

since which php version does this work? php5.1?

Pezhvak Over a year ago

@helle it was part of the language before it gets deprecated

thelr Over a year ago

This is the correct fix, as explained in the 7.4 documentation: php.net/manual/en/…

|

Gerard ONeill · Accepted Answer · 2024-10-03 17:10:05Z

-1

"Array and string offset access"

I was confused because I was not doing string access. But the problem is much more general - to access any "array" (hash), you use the square brackets.

So:

$list = ("name1" => "value", "name2" => "value")

is accessed like:

$list["name2"]

which is not natural for languages (perl) where a has is accessed differently than a list. Although python treats it like an array also..

answered Oct 3, 2024 at 17:10

Gerard ONeill

4,17043 silver badges25 bronze badges

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