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-- Hint: use Ctrl+Enter for SQL autocomplete create table chatsystem ( id int primary key auto_increment, user1 varchar(64), user2 varchar(64) ); insert into chatsystem (user1, user2) values ('User1', 'Test'), ('SomeOne', 'Test'), ('SomeOne', 'User1');
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<?php $connect = &$mysqli; $username = 'User1'; $sql = "SELECT id FROM chatsystem WHERE user1 = ? or user2 = ?"; $stmt = mysqli_stmt_init($connect); mysqli_stmt_prepare($stmt, $sql); mysqli_stmt_bind_param($stmt, "ss", $username, $username); mysqli_stmt_execute($stmt); $resultData = mysqli_stmt_get_result($stmt); mysqli_stmt_close($stmt); while ($row = mysqli_fetch_assoc($resultData)) { var_export($row); }
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