(PHP 7 >= 7.2.0, PHP 8)
sodium_unpad — Remove padding data
sodium_unpad(#[\SensitiveParameter] string $string, int $block_size): string
Unpad a padded string. Timing-safe.
stringPadded string.
block_sizeThe block size for padding.
Unpadded string.
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https://www.php.net/manual/en/function.sodium-unpad.php