By Ray Yao

“PHP & MySQL in eight Hours” is an invaluable e-book for newcomers. you could research whole basic wisdom of personal home page and MySQL quickly and simply. the simple definitions, the obvious and straightforward examples, the flowery motives and the neat and lovely structure function this beneficial and educative e-book. you'll be inspired by way of the recent designated composing variety. analyzing this ebook is a smart leisure! you could grasp all crucial Hypertext Preprocessor and MySQL ability speedy.

Table of Contents

Hour 1 commence PHP

Hour 2 personal home page Basic

Hour three Use Array

Hour four shape Basic

Hour five Dynamic Data

Hour 6 classification & Object

Hour 7 MySql Basic

Hour eight MySql & PHP

Appendix 1 Hypertext Preprocessor 6 safeguard Programs

How to clear out Malicious Password?

How to filter out Malicious Characters?

How to clear out Malicious Input?

How to restrict precise Input?

How to flee Output?

How to guard Your Database?

Appendix 2 MySQL Command Charts

Appendix three personal home page a hundred checks & Answers

Start coding today!

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Extra resources for PHP: MySQL in 8 Hours

Sample text

Example: $color=array(“yellow”, “red”, “blue”, “white”); sort ( $color ); …… ( Output: blue red white yellow ) Explanation: sort ( $color ) rearranges the order of $color array elements by value. After sorting, the array elements list in order as “blue red white yellow”. Array keys & Values Array elements are consisted of keys and value pair. array( key1=>value1, key2=>value2, kay3=>value3…); “=>” is used to connect key and value. > ( Output: PHP) Explanation: A string can act as an index of array.

In_array( $_POST[“words”], $myarray)” checks the inputted words if accord with the specified characters or numbers in $myarray. “$clean[“words”]” stores the specified words only. Escape Output Escape output means encoding the output so that the original meaning is preserved, which can prevents the user from potentially damaging commands. htmlentities( ); htmlspecialchars( ); “htmlentities( );” and “htmlspecialchars( )” can convert characters to HTML entities in source code. Example: $str = "< © Ray >"; echo htmlentities ( $str ); ( Output in source code: <©Ray;> ) Explanation “htmlentities($str)” converts the "< © Ray >" to html entities.

Example: $num=0; while ($num<10){ $num++; if ($num==5) continue; echo ( $num ); } ( Output: 1234678910) Explanation: Note that the output has no 5. “if ($num==5) continue;” includes “continue” command. When the $num is 5, the program will run “continue”, skipping the next command “echo ( $num )”, and then continue the next loop. Hour 3 Use Array Create an Array An array is a particular variable, which can contain one or more value at a time. array( ) is used to create an array. The syntax to create an array: $array-name = array (“value0”, “value1”, “value2”); Other syntax to create an array: $array-name = array ( ); $array-name[index0] = “value1”; $array-name[index1] = “value1”; $array-name[index2] = “value2”; Example: $color = array ( ); $color [0] = red; $color [1] = blue; $color [2] = green; Explanation: Above code creates an array, array name is $color, it has three elements: $color [0], $color [1], $color [2].

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