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PHP operation mysql example memo_PHP tutorial

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Release: 2016-07-14 10:09:10
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1. General insert

$query = "INSERT INTO Profile (userName) VALUES ('{$userName}')";
$this->db->query($query);
$userId = sprintf("%d", $this->db->insert_id);
$this->db->commit();
2. If there is one in the database, update it, if not, insert it
$query = "INSERT INTO BookRead (userId, bookId, count) VALUES ($_userId, $_bookId, 1) ON DUPLICATE KEY UPDATE count = count + 1";
$this->db->query($query);
$this->db->commit();
3. Update
$query = "UPDATE Profile Set deviceToken='{$_token}' WHERE userId=$_userId";
$this->db->query($query);
$this->db->commit();
4. Query 1, fields that need to be operated
$stmt = $this->db->prepare('SELECT userId, passWord FROM Profile WHERE userName=?');
$stmt->bind_param("s", $_userName);
$rs = $stmt->execute();
$stmt->bind_result($_userId, $_passWord);
while ($stmt->fetch()) {
break;
}
$stmt->close();
Query 2, return query result array
$query = "SELECT name, points FROM Profile WHERE 1 ORDER BY points DESC LIMIT $_from, $_to";
                                                                     
if ($result = $this->db->query($query)) {
while ($row = $result->fetch_row()) {
                                                         
$ret = array (
"name" => $row[0],
"points" => $row[1],
);
}
$result->close();
}

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truehttp: //www.bkjia.com/PHPjc/477688.htmlTechArticle1. General insert $query = INSERT INTO Profile (userName) VALUES ({$userName}); $this -db-query($query); $userId = sprintf(%d, $this-db-insert_id); $this-db-commit(); 2. In the database, such as...
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