Firefox about:config devtools.debugger

Web Browser Sniffing

function get_browser_name($user_agent)
{
    if (strpos($user_agent, 'opera') || strpos($user_agent, 'opr/')) return 'opera';
    elseif (strpos($user_agent, 'edge')) return 'edge';
    elseif (strpos($user_agent, 'chrome')) return 'chrome';
    elseif (strpos($user_agent, 'safari')) return 'safari';
    elseif (strpos($user_agent, 'firefox')) return 'firefox';
    elseif (strpos($user_agent, 'msie') || strpos($user_agent, 'trident/7')) return 'internet explorer';
    elseif (strpos($user_agent, 'ipad')) return 'ipad';
    
    return 'Other';
}

$userAgent = strtolower($_SERVER['HTTP_USER_AGENT']);
$browser = get_browser_name($userAgent);

(javascript)
var userAgent = '';
var browser = '';
console.log('userAgent '+userAgent);
console.log('browser '+browser);

Javascript checkExists

function checkExists(myVar) {

 if (typeof myVar === 'undefined')  { return false;  }
 if ( myVar === null ) { return false;  }
 if ( myVar.length == 0) { return false; } 
 
 return true;
 
}

MYSQL Query for Timestamp Age in Hours

SELECT `route_id` FROM `route` where `is_active`=1
AND TIMESTAMPDIFF(HOUR,`dt_update`,CURRENT_TIMESTAMP())< 48;

Javascript misterClean string cleaner

function misterClean(x) {
   x = x.replace(/^\s+|\s+$/gm,''); // remove end whitespace
   x = x.replace(/(\r\n|\n|\r)/gm,""); // remove line breaks
   return x;
}

No width parameter for SPAN tags, so limit width with javascript

$('span').each(function(index, value) {
  var limit = 30;
  var myID = $(this).attr('id');
  if(myID=='decoderip') {
   limit=60;
  }
  var mytext = $(this).text();
  if (mytext.length > limit) {
   // console.log('span text: '+mytext);
   $(this).text(mytext.slice(0, limit) + '...');
  }
 });

Time seconds increment on class of elements

function updateAge() {
 $('.age').each(function(){
  var age=$(this).text();
  age++;
  $(this).text(age);
 })
}

$(document).ready(function(){
  console.log('document ready'); 
  setInterval(updateAge, 1000); 
})