每个单词的首字母转换为大写： ucwords()
第一个单词首字母变大写： ucfirst()
第一个单词首字母变小写： lcfirst()
所有 字母变大写： strtoupper()
例子
| 代码如下 |
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<?php
echo strtoupper("Hello WORLD!");
?>
输出：
HELLO WORLD!
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第一个单词首字母变大写：ucfirst()
| 代码如下 |
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|
<?php
$foo = 'where are doing?!';
$foo = ucfirst($foo); // where are doing?!
$bar = 'where are doing?!';
$bar = ucfirst($bar); // where are doing?!
$bar = ucfirst(strtolower($bar)); // where are doing?!
?>
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所有 字母变小写： strtolower()
| 代码如下 |
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<?php
$str = "Mary Had A Little Lamb and She LOVED It So";
$str = strtolower($str);
echo $str; // Prints mary had a little lamb and she loved it so
?>
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每个单词的首字母转换为大写：ucwords()
| 代码如下 |
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|
<?php
$foo = 'where are doing?!';
$foo = ucwords($foo); // Where are doing?!
$bar = 'where are doing?!';
$bar = ucwords($bar); // Where are doing?!
$bar = ucwords(strtolower($bar)); // Where are doing?!
?>
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第一个单词首字母变小写：lcfirst()
| 代码如下 |
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|
<?php
$foo = 'HelloWorld';
$foo = lcfirst($foo); // where are doing
$bar = 'where are doing?!';
$bar = lcfirst($bar); // where are doing?!
$bar = lcfirst(strtoupper($bar)); // where are doing?!
?>
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