This document discusses the PHP function strcmp(), which compares two strings. Strcmp() returns 0 if the strings are equal, a negative number if the first string is less than the second string, and a positive number if the first string is greater than the second string. The document asks what types of variables can be passed to strcmp(), what it returns, and if it's possible to force or break strcmp(). It also discusses using strcmp() to compare a string to an array.

1. Cyber 350PHP 1

2. PROBLEM

3.  Wiki
 PHP is a server-side scripting language designed for web
development but also used as a general-purpose programming
language.
 To you
 PHP is a language which involves embedding scripts (automatic
code) in an HTML source code where the script is processed before
the server responds to a user’s request.
PHP

4.  Google
 PHP.net
 Strcmp()
 Isset()
TOOLS

7. CODE

8. What type of variables go into strcmp()?
What does strcmp() return?
Can you force strcmp() to return 0?
Can you break strcmp()?
If so, what happens with the php code?
How can I change variables in the php
code?
THOUGHTS

11. MY SOLUTION
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12. MY SOLUTION

13. MY SOLUTION

14.  Strcmp() compares one letter at a time
 It “subtracts” the character values
 Adds them up and returns that value
 Example:
 Strcmp(“a”, “c”)
 a = 97
 c = 99
 Returns +2
 With an array, it compares letters in string to “nothingness”
making it seem as if they were equal
 If end of both strings is reached, 0 is returned
STRCMP() AND ARRAYS