mysql - Syntax error when use query in php -

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• php parse/syntax errors; , how solve them? 11 answers

anybody me solve query, error syntax error,

unexpected '' (t_encapsed_and_whitespace), expecting identifier (t_string) or variable (t_variable) or number (t_num_string)

 $sl = "select * sanpham id='$_get['id']'"; 

careful arrays , keys.

 $sl = "select * sanpham id='{$_get['id']}'"; 

or

 $sl = "select * sanpham id='" . $_get['id'] . "'";