Question

哪个php函数可用于从字符串中提取大写单词？

例如，我有：

... a large text that contains CAPITALIZED PARTS ...

我需要以编程方式从中提取CAPITALIZED PARTS。

我搜索了互联网，但没有找到任何解决方案。

Answer 1

您可以使用\\b[A-Z]+\\b正则表达式获取带有preg_match_all的ALLCAPS字词：

<?php
 $re = "/\\b[A-Z]+\\b/"; 
 $str = "a large text that contains CAPITALIZED PARTS"; 
 preg_match_all($re, $str, $matches);
 foreach ($matches as $val) {
     print_r($val);
 }
?>

输出：

Array                                                                                                                                                                                                                                                  
(                                                                                                                                                                                                                                                      
    [0] => CAPITALIZED                                                                                                                                                                                                                                 
    [1] => PARTS                                                                                                                                                                                                                                       
)

Answer 2

preg_match_all('/\b([A-Z]+)\b/', $str, $matches);

Answer 3

我会使用默认区分大小写的正则表达式

$string='... a large text that contains CAPITALIZED PARTS ...'
preg_match_all('%[A-Z]+%', $string, $matches);
var_dump($matches);

https://regex101.com/r/eB0rH5/1

Answer 4

$re = "/[A-Z]*/"; 
$str = "a large text that contains CAPITALIZED PARTS"; 
preg_match_all($re, $str, $matches);


$newArr = array();
foreach($matches[0] as $mat){
    if(strlen($mat)>0)
    $newArr[] = $mat; 
}
print_r($newArr);

如何从文本中提取大写部分？

4 个答案: