Coding for Reusability To save time and effort, (Apache web server)
Coding for Reusability To save time and effort, most seasoned programmers will notice oft-repeated bits of code in their applications and store said code in small libraries. When the code is needed, it is included or referenced in the dependent files, instead of forcing the programmer to retype the same code over and over in each file. In your CMS application, some core functions are used on many different pages. It would make the most sense to include those functions in a single file and include it at the top of each appropriate page. Try It Out Creating Reusable Scripts 1. Enter the following code, and save it as outputfunctions.php. This file is going to contain functions to generate different page elements throughout the CMS. $lmt) { $theText = substr($theText, 0, $lmt); $theText = substr($theText, 0, strrpos($theText, )); $trimmed = TRUE; } if ($trimmed) $theText .= … ; return $theText; } function outputStory($article, $only_snippet=FALSE) { global $conn; if ($article) { $sql = SELECT ar.*, usr.name . FROM cms_articles ar . LEFT OUTER JOIN cms_users usr . ON ar.author_id = usr.user_id . WHERE ar.article_id = . $article; $result = mysql_query($sql,$conn); if ($row = mysql_fetch_array($result)) { echo
. htmlspecialchars($row[ title ]) .
n ; 422 Chapter 13
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