PHP String Function examples

gistfile1.txt

The strinng functions work on String . String functions are various type of function . 

String Functions In php - 

strlen()                               Find out the string length

<?php
echo strlen("Learn PHP "); // outputs 9
?>

Str_words_count()               How many words in a string
PHP strrev()                        Reverse the string.
str_replace()                       Replace a part of a string with other string .
strpos()                              find out the position of search string.
strcmp()                             compare two string 
strtolower()                        covert capital string to lower case .
strtoupper()                       covert lower case string to upper case .

These string function used like as 

<?php
echo strlen("Learn PHP "); // outputs 9
?>

For compelete reference review the comment below . 

All string functions are included in PHP Tutorials for website development.
Str_words_count()
PHP strrev()
str_replace()
strpos()
strcmp()
strtolower()
strtoupper()

PHP string functions -