title: string variable shows wrong length
body: <p>So I have a function that gets some string variables from a form (after the form is submitted), then runs a query using those variables  and returns lines of results.
  I have several conditions that work fine, except for one and I can't figure out what's wrong.
  When I print out the query and run it in phpMyadmin - it works just fine (returns 3 rows for example), but it doesn't run on the page (shows that 0 rwos are returned).
  One thing that I have noticed is that when I do var_dump it gives the correct type (string) but wrong length. trim doesn't make any difference.
  So fo example</p>
  
  <pre><code>$name2 = "John Doe";
  var_dump($name1);
  var_dump($name2);
  </code></pre>
  
  <p>The name2 returns  string(8)
  But when for name1 it returns string(9), even though name1 is also "John Doe" - I have no idea what that extra character is.
  That variable is coming from a form, from a select element. Select is populated from a table. I trim resulting POST value before assigning to name1. Character encoding is the same for the table where names in select element are coming from and table on which I run a query.
  All other variables from the form are passing fine and query runs correctly if I don't add the name. Again, if I print out the query (with name condition included) and copy and paste into phpMyAdmin - it runs just fine.
  I'm going crazy here.</p>