PHP Manipulating StringsPHP - Manipulating Strings
Manipulating Strings
Comparing Strings
Checking Usernames and Passwords
Converting Strings into Hypertext Markup Language (HTML)
Using Line Breaks
Encrypting Strings
Checksumming Strings
Extracting Substrings
Protecting Email Addresses Using ASCII Codes
Scanning Formatted Strings
Getting Detailed Information About Variables
Searching in Strings
Using POSIX Regular Expressions
Using Perl-Compatible Regular Expressions
Finding Tags with Regular Expressions
Validating Mandatory Input
Validating Numbers (and Other Data Types)
Validating Email Addresses
Search and Replace
Working with Arrays
Of all data types PHP supports, strings are probably the ones most often used. One of the reasons for this is that, at some point, a string representation of something is needed when sending out something to the client.