php中幾個字元函數小結

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  下面小結PHP中的幾個字元函數，小結一下：

1）ucfirst

   將首字母變大寫，比如

  $string = "this is my web development blog";

echo ucfirst($string);

// Output: This is my web development blog

2) lcfirst,將首字母變小寫

   $string = "This is my Web Development Blog";

echo lcfirst($string);

// Output: this is my Web Development Blog

3）strtoupper,將整個字串變大寫

   $string = "this is my web development blog";

echo strtoupper($string);

// Output: THIS IS MY WEB DEVELOPMENT BLOG

4） strtoplower，將整個字串變小寫

   $string = "tHiS is mY WeB DevElOpMenT bLoG";

echo strtolower($string);

// Output: this is my web development blog

5）ucwords(),可以將句子中每個單詞的第一個字母變大寫，比如

   $string = "this is my web development blog";

echo ucwords($string);

// Output: This Is My Web Development Blog

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