RE: [PHP] Re: PHP Includes and Echoes in Head Sections and Search Engines

On 15 January 2004 22:39, Luke wrote: > ? Holy cow, this gets simpler all the time. Pretty soon, there'll be > ? nothing left on my page but PHP includes and echo functions! ? > ? Does this cut down on a website's file size? In other > words, are the php > ? includes effectively inactive when no one's viewing your main pages, > ? leaving them empty of the included pages? > > Well in a way yes, it wont cut down the transfer bandwitdth, > but because you > are reusing the same files over again, this will take up less > disk space on > your > server. But the same amount of data is transferred when a > user views the > page (as you can see from view->source) > > ? But suppose there's a certain page where I don't want the > style sheet in > ? the middle - the one I named MIDDLE. Is there a way to mark > it in the > ? include page, then instruct the main page to either not import it or > ? replace it with nothing ("")? > > youd have to use a variable, so in the main page do the following > > if($pagetoshow == 'withoutmiddle'){ > $includemiddle = FALSE; > }else{ > $includemiddle = TRUE; //(or false depending) > } Euch! Very long-winded and inefficient. Much better is: $includemiddle = $pagetoshow!='withoutmiddle'; > > and in the include do this: > > if($includemiddle == TRUE){ Likewise -- this can be written more efficiently and more readbly as simply: if ($includemiddle) (Since $includemiddle will be TRUE or FALSE, you can use it directly in the if () -- retrieving its value and comparing it against TRUE gives TRUE if $includemiddle is, er, TRUE, and FALSE if it's FALSE, so doing the comparison just wastes CPU time to reproduce the value you first thought of.) Cheers! Mike --------------------------------------------------------------------- Mike Ford, Electronic Information Services Adviser, Learning Support Services, Learning & Information Services, JG125, James Graham Building, Leeds Metropolitan University, Beckett Park, LEEDS, LS6 3QS, United Kingdom Email: m.ford@leedsmet.ac.uk Tel: +44 113 283 2600 extn 4730 Fax: +44 113 283 3211