php string echo behaving weirdly -


the following not printing , have not yet found explanations online: 

<?php  function aa() {    return "<w"; }  $r = aa();  echo $r;     ?>

no matter kind of quotes use. if print string not starting < , followed character prints correctly. on php.ini but, ideas???

you can try this:

 <?php  function aa() {    return htmlspecialchars("<w"); }  $r = aa();  echo $r;     ?>

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