Question

示例：

THIS IS A Sentence that should be TAKEN Care of

输出应为：

This is a Sentence that should be taken Care of

规则

将大写字词转换为小写
保持小写单词的大写第一个字符保持不变
将句子中的第一个字符设置为大写。

代码

$string = ucfirst(strtolower($string));

失败

它失败了，因为没有保留第一个字。

This is a sentence that should be taken care of

Answer 1

您可以针对这些规则测试每个单词：

$str = 'THIS IS A Sentence that should be TAKEN Care of';
$words = explode(' ', $str);
foreach($words as $k => $word){
    if(strtoupper($word) === $word || // first rule
           ucfirst($word) !== $word){ // second rule 
        $words[$k] = strtolower($word);
    }
}
$sentence = ucfirst(implode(' ', $words)); // third rule

输出：

这是一个应该照顾的句子

一点解释：
由于您有重叠的规则，您需要单独比较它们，所以......

将句子分解为单独的单词，并根据规则检查每个单词;
如果单词是UPPERCASE，请将其变为小写; （THIS，IS，A，TAKEN）
如果这个词是第一个，那就别管它了; （句子，关怀）
如果单词不是ucfirst，请将其变为小写，（即，应该，是）

Answer 2

您可以将句子分解为单个单词，然后对每个单词应用格式化功能：

$sentence = 'THIS IS A Sentence that should be TAKEN Care of';

$words = array_map(function ($word) {
    // If the word only has its first letter capitalised, leave it alone
    if ($word === ucfirst(strtolower($word)) && $word != strtoupper($word)) {
        return $word;
    }

    // Otherwise set to all lower case
    return strtolower($word);
}, explode(' ', $sentence));

// Re-combine the sentence, and capitalise the first character
echo ucfirst(implode(' ', $words));

请参阅https://eval.in/936462

Answer 3

   System.setProperty("webdriver.gecko.driver", "//eclipse-     Oxygen/aaa/src/test/java/aa/aaa/geckodriver 4");


 System.setProperty("webdriver.firefox.bin","/Applications/Firefox.app/Contents/MacOS/firefox-bin");
    DesiredCapabilities capabilities = DesiredCapabilities.firefox();
    capabilities.setCapability("acceptInsecureCerts", true);
    capabilities.setJavascriptEnabled(true);

    driver = new FirefoxDriver(capabilities);
    driver.get("https://www.google.com");

<强>输出：

这是一个应该照顾的句子

Answer 4

$ string =＆＃39;这是一句应该采取的句子＆＃39 ;; $ arr = explode（＆＃34;＆＃34;，$ string）;

foreach($arr as $v)
    {
        $v=ucfirst(strtolower($v));
        $stry=$stry.' '.$v;
    }

echo $ stry;

PHP将大写单词转换为小写，但将ucfirst保留为小写单词

4 个答案: