Detect webkit browser in javascript?

Question

EDITED: I actually used PHP to detect and create a local variable with php tags.

if ( strpos(strtolower($_SERVER['HTTP_USER_AGENT']), 'webkit')) {
    $is_webkit = "true";
}

---

How do I detect if the browser is webkit based? (Google Chrome, newer Opera, safari);

I've tried this:

var isWebkit = (window.webkitURL != null);
if(isWebkit){
    alert("i am a webkit based browser!");
}

Doesn't work for safari

Answer 1

The solution is pretty simple

if(navigator.userAgent.indexOf('AppleWebKit') != -1){
    //this is webkit!
}

AppleWebKit is the name of webkit rendering engine, so every single webkit-based browser must contain this string

MDN page about browser detection & user agent

but if you need trustable information about user's browser engine, you might want to use this:

if(typeof window.webkitConvertPointFromNodeToPage === 'function'){
    // this is webkit (really it is)
}

Explanation: userAgent property can be easily spoofed, so checking specific property is a much better way. But it is not defectless, early versions of safari (before 4.0) doesn't have such property. Chrome supports webkitConvertPointFromNodeToPage since first version, opera supports this as well as it's engine transferred to webkit