PHP strpos() Function: locating a substring within a string
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PHP for loops Exercise: Count a specified characters in a string - w3resource
PHP String Exercise: Print the next character of a specific character - w3resource
Palindromes in PHP – AntPace.com
Replace some characters with Asterisks in PHP using str_repeat(). | by Olususi Kayode Oluyemi | Medium
Reverse String in PHP | Learn Reverse String in PHP Using Various Loops
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PHP Exercises: Convert the last 3 characters of a given string in upper case - w3resource
Important PHP String Functions. A string is group of characters. It is… | by Shankar Babu Acharya | Medium
PHP String Exercise: Get the characters after the last '/' in an url - w3resource
PHP Substring Examples - Dot Net Perls
PHP Get Last 3 Characters from String Example
javascript - How can I get last characters of a string - Stack Overflow
javascript - How can I get last characters of a string - Stack Overflow
string - Substring to get 3 characters from the last character vb.net - Stack Overflow
How to Remove the Last Character from a String in PHP
How to Generate PHP Random String Token (8 Ways) - Phppot
MySQL SUBSTRING() function - w3resource
How to Get First and Last Character from String in PHP? - ItSolutionStuff.com
Extract First or Last n Characters from String in R - GeeksforGeeks
Character escape sequences and numeric notations in PHP • PHP.Watch
arrays - Character in php takes 3 places - Stack Overflow
PHP String Exercise: Print the next character of a specific character - w3resource
Find the character in first string that is present at minimum index in second string - GeeksforGeeks
