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<?php
echo ucfirst("hello world!");
?>

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  • lcfirst() - °Ñ×Ö·û´®ÖеÄÊ××Ö·ûת»»ÎªÐ¡Ð´
  • strtolower() - °Ñ×Ö·û´®×ª»»ÎªÐ¡Ð´
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  • ucwords() - °Ñ×Ö·û´®ÖÐÿ¸öµ¥´ÊµÄÊ××Ö·ûת»»Îª´óд

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