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Instead of detailing all the possible string functions you can use, we'll just give you a brief list. (There's loads of them!) There's an example of how to use each string function, if you click on the links below. Just dip in to them as and when needed.
  String Function Explanation
  chr( ) Convert an ASCII value to a its equivalent character
  ord( ) Find out what the ASCII value of a character is
  echo( ) An alternative to the print statement
  similar_text( ) Tells you how similar two strings of text are
  str_repeat( ) Repeat a character a specified number of times
  str_replace( ) Replace one string with another
  str_word_count( ) Tells you how many words a string has
  strlen( ) Gets the length of a string
  substr( ) Grab a number of character from a string

 

Some more examples of string functions can be found on these external sites:

http://www.w3schools.com/php/func_string_chr.asp
http://www.zend.com/manual/ref.strings.php

In the next section, we'll take a look at PHP Functions: what they are, and how to create your own.

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