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mb_encoding_aliases(): Argument #1 ($encoding) must be of type string, null given #552
Description
Hey there,
I'm enforcing types in my project and got a new error lately concerning this package.
Uncaught TypeError: mb_encoding_aliases(): Argument #1 ($encoding) must be of type string, null given in /var/www/vendor/embed/embed/src/Document.php:49 Stack trace: #0 /var/www/vendor/embed/embed/src/Document.php(49): mb_encoding_aliases(NULL).
Our initial value should be an empty string instead of null $encoding = ''; or the function called more securely with a fallback value mb_encoding_aliases($encoding ?? '').
Pull request which fixes the issue:
#553
Activity
oscarotero commentedon Dec 12, 2024
Good catch. thank you
NathanBaulch commentedon Jun 18, 2026
A related PHP7 issue was also fixed by adding
Document.getValidEncodingin #559.Are there any plans to cut a new release? cc @uzulla
oscarotero commentedon Jun 19, 2026
4.4.18 released
Vitorinox commentedon Oct 31, 2026
Hi @mawiswiss, thanks for the report. This was already fixed in 4.4.18:
getValidEncodingnow tolerates a null encoding. Please upgrade to the latest release (v4.6.0) and feel free to reopen if it still happens.