Download e-book for iPad: Essential PHP Tools: Modules, Extensions, and Accelerators by David Sklar

By David Sklar

ISBN-10: 1430207140

ISBN-13: 9781430207146

ISBN-10: 1590592808

ISBN-13: 9781590592809

This publication is a vital consultant to a few of the simplest loose components to personal home page. those components, or instruments, supply worthwhile performance for making improvements to your Hypertext Preprocessor net purposes, together with having access to databases, producing strong internet types, utilizing web page templating structures, growing and parsing XML records, authenticating clients, and masses more.

In reaction to the present scarcity of documentation concerning the instruments, writer David Sklar packs this ebook with information about fitting, configuring, and utilizing every one tool—along with lots of examples adapted to Hypertext Preprocessor four and five.

Sklar additionally lays out the main points of Auth and HTML_QuickFormtwo challenging operating PEAR modules, so that you wouldn't have to code your personal authentication process or net shape building set! additionally integrated are chapters on debugging courses, and lengthening internet server pace. briefly, you'll learn how to cast off inefficiencies in Hypertext Preprocessor, and increase functionality with none code modification.

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Extra info for Essential PHP Tools: Modules, Extensions, and Accelerators

Sample text

L l J[ ·I -·· calories -. 15 I Figure 2-1. The rs2html() function generates an HTML table. By default, the table produced by rs2html() has BORDER= 1 WIDTH= 98% as the attributes for the

tag, but you can override those defaults by passing different attributes as a second argument to rs2html(). Using the record set from the previous example, rs2html($rs, I CLASS="fancytable" I) prints a table whose opening tag is as follows: I I I 1
You can also change the text of the table's header row.

DB: :getRow() Use the getRow() method when you want all values in the first or only row returned from a query. getRow() returns an array or an object, depending on the current fetch mode. ', array($id),DB_FETCHMODE_OBJECT); print "Flavor: $row->flavor, Price: $row->price"; Placeholders must be passed to getRow() in an array, just as they must be passed to query(). DB: :getAll() Use getAll () when you want all values in all rows returned from a query. Just like getRow(), getAll () accepts an array of placeholder replacements as a second argument and an optional alternate fetch mode as a third argument.

If the string quoting happens first, %is turned into '%' , and then the wildcard escaping makes it ' \%' . This matches only a onecharacter string containing a percent sign. What does all this mean in practice? If you want to protect against errant SQL wildcards in user input, use quote () to quote strings before escaping wildcards. Put these quoted and escaped values into queries explicitly instead of using placeholders: $flavor= str_replace(array('%','_'),array('\%', '\_'), $dbh->quote($_REQUEST['flavor'])); $sth = $dbh->query("SELECT * FROM ice cream WHERE flavor LIKE $flavor"); 11 Chapter 1 Magic Quotes PHP has some configuration settings that affect string quoting.

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Essential PHP Tools: Modules, Extensions, and Accelerators by David Sklar


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