php替换多个空格的方法：首先创建一个PHP示例文件；然后定义一个“merge_spaces”方法；最后通过正则表达式“preg_replace("/\s(?=\s)/","\\1",$string);”去除多个空格并保留一个即可。
推荐：《PHP视频教程》
php多空格只保留一个的方法
代码：
function merge_spaces($string){
return preg_replace("/\s(?=\s)/","\\1",$string);
}The above is the detailed content of How to replace multiple spaces in php. For more information, please follow other related articles on the PHP Chinese website!
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
