[英]Replace an upper-case string with lower-case using preg_replace() and regex
Is it possible to replace an upper-case with lower-case using preg_replace
and regex
? 是否可以使用
preg_replace
和regex
将大写字母替换为小写字母?
For example: 例如:
The following string: 以下字符串:
$x="HELLO LADIES!";
I want to convert it to: 我想将其转换为:
hello ladies!
using preg_replace()
: 使用
preg_replace()
:
echo preg_replace("/([A-Z]+)/","$1",$x);
I think this is what you are trying to accomplish: 我认为这是您要实现的目标:
$x="HELLO LADIES! This is a test";
echo preg_replace_callback('/\b([A-Z]+)\b/', function ($word) {
return strtolower($word[1]);
}, $x);
Output: 输出:
hello ladies! This is a test
Regex101 Demo: https://regex101.com/r/tD7sI0/1 Regex101演示: https ://regex101.com/r/tD7sI0/1
If you just want the whole string to be lowercase though than just use strtolower
on the whole thing. 如果只希望整个字符串都小写,而不是仅在整个字符串上使用
strtolower
。
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