PHP- How a String and Numeric value is arithmatically added?
<p>i wonder how the operation of addition works in case of one value to be numeric and other to be string For Example:</p>

<pre><code>echo $j = 1 + "stackoverflow";
</code></pre>

<p>I tried executing this expression, It outputs me 1.. Can someone explain me why the string is not involved in addition, if it is involved then why is it converted to 0?</p>
