PHP substr() function - w3resource
Converting String to Array in PHP Using Different Methods
GitHub - GroundSix/php-string-manager: StringManager Component
PHP Type Juggling. PHP has two comparisons loose (==, =!)… | by HacktheBoxWalkthroughs | Medium
Split, tokenize, and iterate a string in PHP – BrainBell
PHP String Exercise: Print the next character of a specific character - w3resource
PHP Data Types
GitHub - Eden-PHP/String
PHP – empty() Explained – Tech Geek Galaxy
How to change the string case? in PHP – BrainBell
Find positions of a substring in a string in PHP – BrainBell
Reverse a String in PHP without using strrev() Method
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
PHP Program to count the vowels, digits, and spaces in a string | T4Tutorials.com
PHP String Comparison - YouTube
0' as a string with empty() in PHP - Stack Overflow
PHP Strings - java4coding
7 PHP String Functions You Should Know and How To Use Them | by Joshua Otwell | Level Up Coding
How to reverse string in PHP without using function? : r/codinginterview
What's New In PHP 7.4 | TechnoLush
Why does PHP consider 0 to be equal to a string? - Stack Overflow
PHP: Expects parameter to be string array given - Stack Overflow
Generate Perfect Initials using PHP | by Chris Blackwell | Medium
PHP Split String | Working of the PHP Split String with Examples
PHP Strings - AlphaCodingSkills
GitHub - heavenshell/php-string-filter: Porting p5-string-filter to PHP
