Formatting Strings in PHP – BrainBell
php - Why do I get error on "Array to String Conversion"? - Stack Overflow
how to use string in php - Computer and Internet
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PHP substr() function - w3resource
PHP String Function | Different Examples of String Function in PHP
Beginner guide of PHP Strings - DevOpsSchool.com
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PHP date from string
Php String | Single Quoted PHP String | Double Quoted PHP String
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How to Convert an Array to String in PHP? - TutorialKart
Notice array to string conversion in php mysql - YouTube
PHP String Exercise: Select first 5 words from the specified string - w3resource
String Functions in PHP - Tech Fry
The Top 9 Most Popular PHP String Functions – vegibit
PHP "Array to String" (Examples of How to Use the implode Function)
Does the string in the `<?php ?>` is a part of PHP? - Stack Overflow
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