PHP Implode – Convert Array to String with Join
phpexcel - PHP: How do I can get data as string format from Excel data with scientific notation / exponential format? - Stack Overflow
When Time Began: The PHP Date Function - OSTraining
String Formatting in PHP
How to link string literals with variables in PHP? | Droptica
PHP Sprintf: Powerful String Formatting
PHP - String Format Type Specifiers
PHP Implode – Convert Array to String with Join
PHP Implode – Convert Array to String with Join
PHP sprintf() function - w3resource
Formatting Strings in PHP – BrainBell
21 Useful PHP Snippets
PHP Date and Time Function Syntax and Format String Example Code
Why, When, and How to use sprintf and printf - nSiteful Web Builders
PHP number_format() function - w3resource
The Top 9 Most Popular PHP String Functions – vegibit
PHP String Exercise: Format values in currency style - w3resource
PHP post hexadecimal values from option and store to mysql in string format - Stack Overflow
Php String And Regular Expressions | PPT
