Fatal errors in php 8.0

[devup]

Got fatal error after upgrade to php 8.
PHP Fatal error: Array and string offset access syntax with curly braces is no longer supported
In lines: 442 , 869, 1000
To fix (change { to [ and } to ] ):
$digit = $this->_decode_digit($encoded{$enco_idx++}); --> $digit = $this->_decode_digit($encoded[$enco_idx++]);
$v = ord($input{$k}); -->$v = ord($input[$k]);
$output[$out_len] += ord($input{$i}) << (8 * (3 - ($i % 4) ) ); --> $output[$out_len] += ord($input[$i]) << (8 * (3 - ($i % 4) ) );

[smartcorestudio]

Also line 426:
$decoded[] = ord($encoded{$k}); --> $decoded[] = ord($encoded[$k]);

[algo26-matthias]

You can just use an up-to-date version of this library from here: https://github.com/algo26-matthias/idna-convert