mb_detect_encoding() et al. need sufficient input
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Extension: mbstring
- Dominant language
- XML
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Description
Description
The following code:
<?php
$strings = ['bl', 'Bl', 'Blog'];
foreach ($strings as &$str) {
$str = mb_convert_encoding($str, 'UTF-8', mb_list_encodings());
}
echo '<pre>' . print_r($strings, true) . '</pre>';
Resulted in this output:
Array
(
[0] => 扬
[1] => 求
[2] => 求杯
)
But I expected this output instead:
Array
(
[0] => bl
[1] => Bl
[2] => Blog
)
PHP Version
PHP 8.1.8
Operating System
No response
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the PHP documentation entries for mb_detect_encoding() and mb_convert_encoding(), then review the behavior shown by the reproducible example. Document the requirement for sufficient input and the resulting limitations or misleading conversions, with wording that explains why the expected strings are not preserved.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- php
- Domain
- documentation
- Issue type
- Documentation
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 48/100