PHP Strings - java4coding
explode - Why do dollar symbols not appear in a double-quoted PHP string? - Stack Overflow
Php - check if string is not empty or has a first character not equal to - Stack Overflow
How to Reverse String in PHP | Custom Function - YouTube
How to reverse string in PHP without using function? : r/codinginterview
PHP Exercises: Remove the character in a given position of a given string - w3resource
PHP Data Types
PHP substr() function - w3resource
How to Count a specified characters in a string in PHP - YouTube
PHP explode(): Split a String by a Separator into an Array of Strings
PHP String to Array Conversion । PHP Explode Function - YouTube
php - Illegal string offset 'name' and Uninitialized string offset: 0 - Stack Overflow
regex - URL string compare not working in php - Stack Overflow
Reverse a String in PHP without using strrev() Method
The PHP File_Get_Contents() Function - Read File Into A String - PHP Tutorials
PHP Program to count the vowels, digits, and spaces in a string | T4Tutorials.com
Converting String to Array in PHP Using Different Methods
How to change the string case? in PHP – BrainBell
GitHub - hugsbrugs/php-string: PHP String Utilities
PHP String Exercise: Print the next character of a specific character - w3resource
PHP Exercises: Count the number of strings with given length in given array of strings - w3resource
PHP String Functions
PHP Strings - AlphaCodingSkills
Beginner guide of PHP Strings - DevOpsSchool.com
PHP - Wikipedia
