For example
upload/vod/20180721/
upload/vod/20180720/
upload/vod/20180719/
...
are changed to
images/vod/20180721/
images/vod/20180720/
images/vod/20180719/
How to change it?
First use the explode function to adapt the string into an array, and then take the first subscript and change it, or use the substitution method. str_replace, check how to use it
update table name set field name ='modified value'
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
First use the explode function to adapt the string into an array, and then take the first subscript and change it, or use the substitution method. str_replace, check how to use it
update table name set field name ='modified value'