php 如何在php中删除字符串中的“\n”？
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how can i remove "\n" in string in php?
提问by mingfish_004
how to remove "\n" in string?
I used 3 method bellow ,seams that only the "\s+" works , but I only want to remove \n,not all space ,how to do the job?
need help, this question had puzzled me for a long time.
如何删除字符串中的“\n”？
我使用了下面的 3 种方法，接缝只有“\s+”有效，但我只想删除 \n，而不是所有空间，如何完成这项工作？
需要帮助，这个问题困扰了我很长时间。
$str="<p>
hello<br>
world
</p>";
//$str=str_replace("\n","",$str);
$str=preg_replace("@\n@","",$str);
//$str=preg_replace("@\s+@"," ",$str);
echo $str;
回答by Serhiy
This should also do the trick.
这也应该可以解决问题。
$str=str_replace("\r\n","",$str);
回答by Hosam alzagh
$string = trim(preg_replace('/\s\s+/', ' ', $string));
The above code will replace multiple spaces and newlines with a single space.
上面的代码将用一个空格替换多个空格和换行符。
