Parse error: syntax error, unexpected T_STRING,

[ROXIT]

Anyone please tell me how can I write this statement inside echo...
its giving me an error......

Parse error: syntax error, unexpected T_STRING, expecting ',' or ';' in D:\xampp\htdocs \project\Rahul sir\skills\skil ls.php on line 53

echo '<input type="checkbox" value="$cat_tit['category_title']" id="cat_title" />';

[Rabbit]

Remove the single quotes around 'category_title '.