| public detectUTFEncoding ( string $str ) : string | false | ||
| $str | string | |
| return | string | false | |
public function detectUTFEncoding($str)
{
switch (substr($str, 0, 2)) {
case UTF16_BIG_ENDIAN_BOM:
return 'UTF-16BE';
case UTF16_LITTLE_ENDIAN_BOM:
return 'UTF-16LE';
}
switch (substr($str, 0, 3)) {
case UTF8_BOM:
return 'UTF-8';
}
switch (substr($str, 0, 4)) {
case UTF32_BIG_ENDIAN_BOM:
return 'UTF-32BE';
case UTF32_LITTLE_ENDIAN_BOM:
return 'UTF-32LE';
}
return false;
}