Category: Code

Regex’s | Regular Expressions in Programming

Today I saw a nice script which redirects mobile traffic by searching the useragent string for a list of search terms related to mobile devices. This is PHP but I’ll show you how you can use this type of “regex” in Javascript too. <?php $useragent=$_SERVER[‘HTTP_USER_AGENT’]; if(preg_match(‘/^1207.*|^3gso.*|^4thp.*|^501i.*|^502i.*|^503i.*|^504i.*|^505i.*|^506i.*|.*Fennec.*|^6310.*|^6590.*|^770s.*|^802s.*|.*a100.*|.*a510.*|.*a511.*|^abac.*|^acer.*|^acoo.*|^acs.*|^aiko.*|^airn.*|.*alacatel.*|^alav.*|^alca.*|^alco.*|^amoi.*|^Amoi.*|.*android.*|^anex.*|^anny.*|^anyw.*|^aptu.*|^arch.*|^argo.*|^aste.*|^asus.*|^ASUS.*|^attw.*|^au.*|^audi.*|^Audiovox.*|^AU-MIC.*|^aur.*|^aus.*|^avan.*|^beck.*|^bell.*|^benq.*|^BenQ.*|^bilb.*|^bird.*|^Bird.*|^blac.*|.*BlackBerry.*|^blaz.*|.*Blazer.*|.*boxee.*|.*BRAVIA.*|^brew.*|^brvw.*|^bumb.*|^bw.*|^c55.*|^capi.*|^ccwa.*|^cdm.*|^CDM.*|.*CE-HTML.*|^cell.*|^chtm.*|^cldc.*|^cmd.*|^comp.*|^cond.*|.*CorePlayer.*|^craw.*|^dait.*|^dall.*|^dang.*|^dbte.*|^dc.*|.*dell streak.*|^devi.*|^dica.*|.*DLNA.*|.*DLNADOC.*|^dmob.*|^doco.*|^DoCoMo.*|^dopo.*|^dopod.*|^ds.*|^ds12.*|^el49.*|^elai.*|^eml2.*|^emul.*|^eric.*|.*Ericsson.*|^erk0.*|^esl8.*|^ez40.*|^ez60.*|^ez70.*|^ezos.*|^ezwa.*|^ezze.*|^fake.*|^fetc.*|^fly.*|.*FlyCast.*|.*foobar2000.*|^g1.*|^g560.*|^gene.*|^gf.*|^go.*|.*GomPlayer.*|^good.*|.*GoogleTV.*|^grad.*|^grun.*|^haie.*|^Haier.*|.*hbbtv.*|.*HbbTV.*|^hcit.*|^hd.*|^hei.*|^hipt.*|^hita.*|^HP.*|.*htc.*|^htca.*|^htcg.*|^htcp.*|^htcs.*|^htct.*|^http.*|^huaw.*|.*Huawei.*|^hutc.*|^i230.*|^iac.*|^ibro.*|^idea.*|.*iemobile.*|^ig01.*|^ikom.*|^im1k.*|^i-mobile.*|^inno.*|.*ipad.*|^ipaq.*|.*iPAQ.*|.*iphone.*|.*iPod.*|^iris.*|.*iTunes.*|^jata.*|^java.*|^jbro.*|^jemu.*|^jigs.*|^kddi.*|^KDDI.*|^keji.*|^kgt.*|.*kindle.*|^klon.*|^KONKA.*|^kpt.*|^kwc.*|^KWC.*|^kyoc.*|^kyok.*|.*Large Screen.*|^leno.*|^Lenovo.*|^lexi.*|^lg.*|^lg50.*|^lg54.*|^lge.*|^libw.*|^lynx.*|^m3ga.*|^m50.*|^mate.*|^maui.*|^maxo.*|^mc01.*|^mc21.*|^mcca.*|^medi.*|^merc.*|^meri.*|^midp.*|.*midp.*|.*mini.*|^mio8.*|^mioa.*|.*Miro.*|^mits.*|^mmef.*|^mo01.*|^mo02.*|^mobi.*|.*mobile.*|^mode.*|^modo.*|^mot.*|^motv.*|^mozz.*|.*MPlayer.*|.*MSN.*|^mt50.*|^mtp1.*|^mtv.*|^mwbp.*|^mywa.*|^n100.*|^n101.*|^n102.*|^n202.*|^n203.*|^n300.*|^n302.*|^n500.*|^n502.*|^n505.*|^n700.*|^n701.*|^n710.*|^nec.*|^NEC-.*|^nem.*|^neon.*|^netf.*|.*NETTV.*|^newg.*|^NEWGEN.*|^newt.*|.*Nexus 10.*|.*Nexus 7.*|.*Nintendo.*|^nok6.*|^noki.*|.*Nokia.*|.*Novarra.*|^nzph.*|^o2.*|.*o2.*|.*O2.*|^o2im.*|.*Opera.Mobi.*|^opti.*|^opwv.*|^oran.*|^owg1.*|^p800.*|.*Palm.*|^pana.*|^Panasonic.*|^pand.*|^pant.*|^PANTECH.*|^pdxg.*|^PG.*|^pg13.*|^phil.*|^Philips.*|^pire.*|^play.*|.*PLAYSTATION 3.*|.*Plex.*|^pluc.*|^pock.*|.*pocket.*|^port.*|^portalmmm.*|^pose.*|^PPC.*|^prox.*|.*PS3.*|^psio.*|.*psp.*|^qc07.*|^qc12.*|^qc21.*|^qc32.*|^qc60.*|^qci.*|^qtek.*|^Qtek.*|.*QuickTime.*|^qwap.*|^r380.*|^r600.*|^raks.*|^rim9.*|^rove.*|^rozo.*|^s55.*|^sage.*|^Sagem.*|^SAGEM.*|^sama.*|^samm.*|^sams.*|.*SAMSUNG.*|^sany.*|.*Sanyo.*|^sava.*|^sc01.*|^sch.*|^SCH.*|.*SCH-.*|.*sch-i800.*|^scoo.*|^scp.*|^sdk.*|^se47.*|^sec.*|^SEC.*|^sec0.*|^sec1.*|^semc.*|.*SEMC-Browser.*|^send.*|^Sendo.*|^seri.*|^sgh.*|^SGH.*|.*SGH-.*|.*sgh-t849.*|^shar.*|^Sharp.*|.*shw-m180s.*|^sie.*|^SIE.*|^siem.*|^SIEMENS.*|.*silk.*|^sl45.*|^slid.*|^smal.*|^smar.*|.*Smarthub.*|.*smartphone.*|.*SmartTV.*|.*SMART-TV.*|^smb3.*|^smit.*|^smt5.*|^soft.*|^SoftBank.*|^sony.*|^SonyEricsson|^SonyEricsson.*|.*SonyEricsson.*|^sp01.*|^sph.*|^SPH.*|^spv.*|^sy01.*|^symb.*|.*symbian.*|.*SymbianOS.*|^t218.*|^t250.*|^t600.*|^t610.*|^t618.*|.*tablet.*|^tagt.*|^talk.*|^tcl.*|^tdg.*|.*teleca.*|^teli.*|^telm.*|^tim.*|^topl.*|^tosh.*|.*Toshiba.*|.*treo.*|^ts70.*|^tsm.*|^tsm3.*|^tsm5.*|.*up\.browser.*|^upg1.*|.*up\.link.*|.*UPnP.*|^upsi.*|^UTS.*|^utst.*|^v400.*|^v750.*|^veri.*|^Vertu.*|^virg.*|^vite.*|^vk40.*|^vk50.*|^vk52.*|^vk53.*|.*VLC media player.*|^vm40.*|^voda.*|.*vodafone.*|^vulc.*|^vx52.*|^vx53.*|^vx60.*|^vx61.*|^vx70.*|^vx80.*|^vx81.*|^vx83.*|^vx85.*|^vx98.*|^w3c.*|.*WAFA.*|^wap.*|.*wap.*|^wapa.*|^wapi.*|^wapj.*|^wapm.*|^wapp.*|^wapr.*|^waps.*|^wapt.*|^wapu.*|^wapv.*|^wapy.*|^webc.*|.*webOS.*|.*WebTV.*|^whit.*|.*BOLT.*|^wig.*|.*wii.*|^winc.*|.*windows ce.*|.*Windows.CE.*|.*Windows-Media-Player.*|.*WindowsPhone.*|.*Windows Phone.*|^winw.*|^wmlb.*|^wonu.*|^x700.*|.*XBMC.*|.*xbox.*|^xda.*|.*Xda.*|^xda2.*|^xdag.*|^yas.*|^your.*|^zeto.*|^ZTE.*/i’, $useragent)) {     header(‘Location: http://mobile.mysite.com’); } ?> So the code above will redirect mobile devices...

A simple floating feedback/support button

Updated for 2020 with a cleaner design. This uses the mail command in PHP to send the email but if this is disabled on your server you can connect it to Sendgrid/Mailchimp/AWS etc for the sending of email queries. There is a working example at: https://jamesbachini.com/misc/feedbackexample.html The code for this is really easy to implement as it is all just copy and paste. I’ve open-sourced the project on GitHub: https://github.com/jamesbachini/feedbackbutton...

Alert box on click through to offer

The following example will allow you to create an alert box when the user clicks through from your landing page to the offer page. This can be useful to remind users of your offers value proposition, sign-up requirements (double-opt in?) or just to increase conversion rate on the offer end. A working demo is available here: preclickwarning.htm <html> <script> function offerAlert() {     alert(“$50 credit has been applied to your...

A simple iOS / Android traffic splitter in PHP

The following basic PHP code will split traffic by device with iOS traffic going to the first out link, Android to the second and leftovers to the third. <?php     $ua = strtolower($_SERVER[‘HTTP_USER_AGENT’]);     if (strpos($ua,’iphone’) !== false || strpos($ua,’ipod’) !== false || strpos($ua,’ipad’) !== false) {         $out = ‘https://iosoutlink.com/’;     } elseif (strpos($ua,’android’) !== false) {         $out = ‘https://androidoutlink.com’;     } else {       ...

Splitting traffic to different offers on mobile

If you are buying bulk traffic to a mobile offer the chances are that you can split some of your traffic off to different offers. For example if  you have a pin submit that only accepts android but has a much higher payout then you can separate your android traffic and increase your bottom line. There are a few ways to do this using popular tracking software but I prefer...

RAM & CPU usage PHP script

Update Feb 2020 This single file, server health check, written in PHP. It was getting a lot of downloads so I’ve updated the code and open sourced it on Github. You can see demo here: https://jamesbachini.com/misc/servercheck.php JSON output: https://jamesbachini.com/misc/servercheck.php?json=1 Single file download here: https://jamesbachini.com/misc/servercheck.zip Github repo here: https://github.com/jamesbachini/Server-Check-PHP Screenshot: It’ll run on linux servers but not on windows or wamp. To calculate ram we use the ‘free’ shell command. To...

Resize youtube/vimeo iframe to maximum available height and width

Here is the code to make a flexible youtube.com or vimeo.com video fit both the height and width of the containing div. Like a flexible adsense unit it will take up the maximum available space on the page or be constrained within a containing object such as a div. CSS: .vcontainer { position:relative; padding-bottom:56.25%; padding-top:30px; height:0; overflow:hidden; } .vcontainer iframe, .vcontainer object, .vcontainer embed { position:absolute; top:0; left:0; width:100%; height:100%;...

Calculate distance between two geocooridnates

Here is a javascript function to calculate the distance between two latitude and longitude coordinates. function deg2rad(deg) { return deg * (Math.PI/180) } function calcDistance(lat1,lon1,lat2,lon2) {   var R = 6371; // Radius of the earth in km   var dLat = deg2rad(lat2-lat1);   var dLon = deg2rad(lon2-lon1);   var a =     Math.sin(dLat/2) * Math.sin(dLat/2) +     Math.cos(deg2rad(lat1)) * Math.cos(deg2rad(lat2)) *     Math.sin(dLon/2) * Math.sin(dLon/2)     ;   var...

Option to Disable Adsense Ads

In some cases it is beneficial to provide a link or option for visitors to a site not to see the adsense ads the first time they visit a page. Ads can sometimes be viewed negatively and for the first visit or under certain circumstances it is best to temporarily disable them. Here is the code so that you can just add ?noads=1 to the end of your url and...

Automatic Redirect for Mobile Landing Page

Automatic Redirect for Mobile Landing Page

Want a mobile lander with a 90%+ “CTR”? Simply add the following javasript: <script> function go() { location.href = ‘http://www.jamesbachini.com’; } function init() { setTimeout(function() { confirm(‘You have two friends who recommended this app’); },3000); setTimeout(function() { go(); },5000); } </script> Then run the init function on body load like so: <body onload=”init();”> This does two things it ensures the user has seen the page, all be it briefly, and...