Check a string for alphabetically ordered characters
<p>This seems so obvious , but I cannot find a way to do this.<br>
I think there even is a regular PHP function to do this, but even that one stays well hidden after 1,5 hours of intensive Google searches.<br><br></p>

<h1>What I want</h1>

<ul>
<li>A function that takes a string as input.<br></li>
<li>Checks that string for the number of times it has alphabetical orderded sequences of more than 3 characters: <br></li>
<li>returns true if a sequence of more than 3 has been found.<br><br></li>
</ul>

<h1>Example</h1>

<p><b>"youlookgreatbcdetoday"</b> =>  has "bcde" in it ... so has to return true<br>
<b>"youlookgreatklmtoday"</b>  =>  only has "klm" in it ... so that has to return false<br>
<b>"youlookgreattoday"</b>     =>  has no alphabetically ordered sequences in it, so returns false<br></p>

<p><br></p>

<h1>Possible usecase</h1>

<ul>
<li>password strength checker</li>
<li>wordgame</li>
<li>...</li>
</ul>

<p><i><b>disclaimer:</b> I wish I already had some code to show you, but I literally have nothing yet.<br>Only thing I could come up with was to split the string up in an array and do some magic on the array ... but even then I got stuck.</i><br></p>

<p>Hope one of you will save me :)</p>
