![Important PHP String Functions. A string is group of characters. It is… | by Shankar Babu Acharya | Medium Important PHP String Functions. A string is group of characters. It is… | by Shankar Babu Acharya | Medium](https://miro.medium.com/max/683/1*puTmT41-i-ZA6jbUcesClQ.png)
Important PHP String Functions. A string is group of characters. It is… | by Shankar Babu Acharya | Medium
![4 string functions to convert string case in PHP | strtoupper() function in php | strtolower() function in php | ucfirst | ucwords function in php – Learn WebTech 4 string functions to convert string case in PHP | strtoupper() function in php | strtolower() function in php | ucfirst | ucwords function in php – Learn WebTech](http://www.learnwebtech.in/wp-content/uploads/2021/04/string-length-find-in-php-346x195.png)
4 string functions to convert string case in PHP | strtoupper() function in php | strtolower() function in php | ucfirst | ucwords function in php – Learn WebTech
![php - Find whether a string is palindrome or not.Constrains: No storing the string in any extra variable - Stack Overflow php - Find whether a string is palindrome or not.Constrains: No storing the string in any extra variable - Stack Overflow](https://i.stack.imgur.com/BwZMm.jpghttps://i.stack.imgur.com/BwZMm.jpg)