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Fix null return value when regexp replace fails on invalid input

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This commit is contained in:
Kijin Sung 2025-09-20 11:34:54 +09:00
parent dcd84033cf
commit 16b6544f9d
1 changed files with 3 additions and 3 deletions
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6
common/functions.php
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@ -671,7 +671,7 @@ function utf8_mbencode($str): string
$bytes = array(ord($m[0][0]), ord($m[0][1]), ord($m[0][2]), ord($m[0][3]));
$codepoint = ((0x07 & $bytes[0]) << 18) + ((0x3F & $bytes[1]) << 12) + ((0x3F & $bytes[2]) << 6) + (0x3F & $bytes[3]);
return '&#x' . dechex($codepoint) . ';';
}, (string)$str);
}, (string)$str) ?? '';
}
/**
@ -686,11 +686,11 @@ function utf8_normalize_spaces($str, bool $multiline = false): string
{
if ($multiline)
{
return preg_replace(['/((?!\x0A)[\pZ\pC])+/u', '/\x20*\x0A\x20*/'], [' ', "\n"], (string)$str);
return preg_replace(['/((?!\x0A)[\pZ\pC])+/u', '/\x20*\x0A\x20*/'], [' ', "\n"], (string)$str) ?? '';
}
else
{
return preg_replace('/[\pZ\pC]+/u', ' ', (string)$str);
return preg_replace('/[\pZ\pC]+/u', ' ', (string)$str) ?? '';
}
}