$_POST['myVar'] in where clause

[dotJoon]

code
$query="select id from myTable1 where title='$_POST
('$myVar')' " ;
echo $query;


result
select id from myTable1 where title='Array('title1')'

For putting $_POST variable in where clause, I don't know which is correct between parenthesis in the above and braket in the below?

code
$query="select id from myTable1 where title='$_post['$myVar']' " ;
echo $query;

result
Parse error: syntax error, unexpected T_ENCAPSED_AND_WHITESPACE, expecting T_STRING 
or T_VARIABLE or T_NUM_STRING

How can I make the result "select id from myTable1 where title='title1' "?