84669 person learning
152542 person learning
20005 person learning
5487 person learning
7821 person learning
359900 person learning
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48569 person learning
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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'