LEARNING PHP MYSQL JAVASCRIPT ROBIN NIXON PDF DOWNLOAD

Robin started his computing career in the Cheshire homes for disabled people, wherehe was responsible for setting up computer rooms in a number of residential homes,and for evaluating and tailoring hardware and software so that disabled people coulduse the new technology—sometimes by means of[r]

predefined one, passing the data to it. This has the effect of ensuring that every item ofdata entered is inserted directly into the database and cannot be interpreted as SQLqueries. In other words, SQL injections become impossible.The sequence of queries to execute when using MySQL’s command[r]

enter the examples in the next section. But first you should type the following to log into your MySQL system:mysql -u root -pThis tells MySQL to log you in as the user root and to request your password. If youhave a password, enter it; otherwise, just press Return.Once you are[r]

Fetching a rowIt was important to show how you can fetch a single cell of data from MySQL, but nowlet’s look at a much more efficient method. So, replace the for loop of query.php (inExample 10-5) with the new loop in Example 10-6, and you will find that you get exactlythe same result[r]

document.write("Popped " + numbers.pop() + "<br />")document.write("Popped " + numbers.pop() + "<br />")document.write("Popped " + numbers.pop() + "<br />")</script>The output from this example is:Pushed 0Pushed 1Pushed 2Popped 2Popped 1Popped[r]

If you have a very long program, it’s quite possible that you could start to run out ofgood variable names, but with PHP you can decide the scope of a variable. In otherwords, you can, for example, tell it that you want the variable $temp to be used onlyinside a particular function and to for[r]

As with all form data, you can use either the POST or the GET methodwhen requesting XML data—your choice will make little difference tothe result.Why use XML?You may ask why you would use XML other than for fetching XML documents suchas RSS feeds. Well, the simple answer is that you don’t have to, b[r]

Learning PHP, MySQL, andJavaScriptRobin NixonBeijing•Cambridge•Farnham•Köln•Sebastopol•Taipei•TokyoLearning PHP, MySQL, and JavaScriptby Robin NixonCopyright © 2009 Robin Nixon. All rights reserved.Printed in the United States of America.Publis[r]

5. The JavaScript then places an indication next to the username input box to showwhether the name is one available to the user—perhaps a green checkmark or ared cross graphic, along with some text.6. If the username is not available and the user still submits the form, the JavaScriptinterrup[r]

Question 2-3What is the purpose of an FTP program?Question 2-4Name the main disadvantage of working on a remote web server.Question 2-5Why is it better to use a program editor instead of a plain-text editor?See the section “Chapter 2 Answers” on page 436 in Appendix A for the answers tothese questio[r]

PHP and MySQL AccessDb Design&Programming.pdf Professional PHP Programming.pdf O'Reilly - Programming PHP.zip Advanced PHP for Web Professionals.chm M&T Books MySQL and PHP Database Applications.pdf O'Reilly Lea[r]

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Plug-in PHP About the AuthorRobin Nixon has worked with and written about computers since the early 1980s (his first computer was a Tandy TRS 80 Model 1 with a massive 4KB of RAM!). During this time he has written in excess of 500 articles for many of the UK’s top computer magazines. P[r]

<?php$fp = fopen("text.txt", 'wb');for ($j = 0 ; $j < 100 ; ++$j){ $written = fwrite($fp, "data"); if ($written == FALSE) break;}fclose($fp);?>This is the most complicated piece of code that you have seen so far, but you’re readyfor it. We’ll look into the file handling c[r]

The ? operator is passed an expression that it must evaluate, along with two statementsto execute: one for when the expression evaluates to TRUE, the other for when it is FALSE.Example 4-26 shows code we might use for writing a warning about the fuel level of acar to its digital dashboard.Example 4-[r]

necessary is to move the file from the temporary location in which PHP stored theuploaded file to a more permanent one. This is done using the move_uploaded_filefunction, passing it the original name of the file, with which it is saved to the currentdirectory.Finally, the uploaded image is di[r]

three more arrays, as in Example 3-5, in which the array is set up with a game alreadyin progress.Example 3-5. Defining a two-dimensional array<?php$oxo = array(array('x', '', 'o'), array('o', 'o', 'x'), array('x', 'o', '' ));?>Once again, we’ve moved up a step in complexity, bu[r]

Literals and VariablesThe simplest form of an expression is a literal, which simply means something thatevaluates to itself, such as the number 73 or the string “Hello”. An expression couldalso simply be a variable, which evaluates to the value that has been assigned to it. Theyare both types of exp[r]

PHP passes our string to strtolower and then to ucfirst, producing (as we’ve alreadyseen when we played with the functions separately):Any # of letters and punctuation you wantNow let’s define a function (shown in Example 5-2) that takes three names and makeseach one lowercased with an initia[r]

<?php$temp = explode('***', "A***sentence***with***asterisks");print_r($temp);?>The code in Example 6-13 prints out the following:Array( [0] => A [1] => sentence [2] => with [3] => asterisks)extract()Sometimes it can be convenient to turn the key/valu[r]

Here I have also used an invaluable function called print_r. It asks PHP to displayinformation about a variable in human readable form. The _r stands for “in humanreadable format.” In the case of the new object $object, it prints the following:User Object( [name] => [password] =&gt[r]