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PHP Introductory Course
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Author(s): Piotr Maksimczyk
Other collections by the author:
 
No. of items: 82
Rating: 4.0 (out of 5)
Last updated: Oct 21, 2001
 
 
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 Description
 
A compact collection for learning basics of PHP - one of the most popular HTML-embedded scripting languages for creating dynamically built web pages. The collection provides information on such subjects as: basic syntax, types of variables and variables itself, constants, expressions, operators, and more.

A conservative estimate based on an extrapolation from numbers provided by Netcraft Go to another website with more information would be that PHP is in use on over 5,100,000 sites around the world.

 
 Sample
 
Q: php: How can you list all predefined variables provided by PHP?
A: By using phpinfo() function, for example:
A: <?php
A:      phpinfo();
A: ?>

Q: php: PHP (officially "PHP: Hypertext Preprocessor") stands for ...
A: Personal Home Page Tools

Q: php: How can you reduce the amount of information available to an attacker who is attempting to discover weaknesses in your system?
A: By setting expose_php = off in your php.ini file.

Q: php: How can we insert a one-line C style comment?
A: Using //, for example:
A: <?php
A:      echo "This is a test"; // This is a one-line C style comment
A: ?>

Q: php: If you use the hexadecimal notation, you must precede the number with ...
A: 0x, for example:
A: $a = 0x1A;

Q: php: What will happen if you specify a number beyond the bounds of the integer-type?
A: It will be interpreted as a float instead.

Q: php: Is the variable name case-sensitive.
A: Yes ($var and $VAR are two completely different variables).

Q: php: Is constant case-sensitive?
A: Yes (but by convention constants are always uppercase).

Q: php: What does this expression do?
Q: --$a
A: Decrements $a by one, then returns $a.

Q: php: When the result of this expression is TRUE?
Q: $a xor $b
A: If either $a or $b is TRUE, but not both.

 
 
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To use this material you need the SuperMemo software Go to another website with more information. In the table below can you find what versions of SuperMemo the PHP Introductory Course collection is compatible with

SM6 Go to another website with more information SM7 Go to another website with more information SM8 Go to another website with more information SM98 Go to another website with more information SM99 Go to another website with more information SM2000 Go to another website with more information SM2002 Go to another website with more information Palm SM Go to another website with more information SMCE Go to another website with more information
green check green check green check green check green check green check green check green check green check

 
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COLLECTION RATING
PHP Array Functions4.0 (out of 5)
 
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