我一直在嘗試多個日期來查詢.csv
與MySQLi中的某些值,但導出時出現問題,所有內容都導出到單個列,而我需要導出應該像SQL代碼(我有3個選定的列,我需要3個導出的列在.cvs
)。 婁你可以找到兩個代碼:MySQLi將表導出爲CSV
1)該代碼創建數據的基礎上,表和插入值:
<?php
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "myDB";
// Create connection
$conn = new mysqli($servername, $username, $password);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
// Create database
$sql = "CREATE DATABASE myDB";
if ($conn->query($sql) === TRUE) {
echo "Database created successfully";
} else {
echo "Error creating database: " . $conn->error;
}
// Create connection pt a crea tabela
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
// sql to create table
$sql = "CREATE TABLE MyGuests (
id INT(6) UNSIGNED AUTO_INCREMENT PRIMARY KEY,
firstname VARCHAR(30) NOT NULL,
lastname VARCHAR(30) NOT NULL,
email VARCHAR(50),
reg_date TIMESTAMP
)";
if ($conn->query($sql) === TRUE) {
echo "Table MyGuests created successfully";
} else {
echo "Error creating table: " . $conn->error;
}
// Create connection pt a insera valori
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
// Insert value in db
$sql = "INSERT INTO MyGuests (firstname, lastname, email)
VALUES ('John', 'Doe, Mark', '[email protected]'),
('Mary', 'Moe-Johny', '[email protected]'),
('Julie', 'Dooley', '[email protected]')";
if ($conn->query($sql) === TRUE) {
echo "New record created successfully";
} else {
echo "Error: " . $sql . "<br>" . $conn->error;
}
$conn->close();
?>
2)該代碼可用於在.csv
出口:
<?php
//header to give the order to the browser
header('Content-Type: text/csv');
header('Content-Disposition: attachment;filename=export.csv');
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "myDB";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "SELECT id, firstname, lastname FROM MyGuests";
$result = $conn->query($sql);
if ($result->num_rows > 0) {
// output data of each row
while($row = $result->fetch_assoc()) {
echo "id: " . $row["id"]. " - Name: " . $row["firstname"]. " " . $row["lastname"]. "<br>";
}
} else {
echo "0 results";
}
$conn->close();
?>
我使用這個版本XAMP:
Apache/2.4.18 (Win32) OpenSSL/1.0.2e PHP/7.0.1
Database client version: libmysql - mysqlnd 5.0.12-dev - 20150407 - $Id: 7e72f9690b1498a1bead7a637c33a831c0d2f655 $
PHP extension: mysqli Documentation
PHP version: 7.0.1
這個版本爲MySQL代碼創建了一些問題,這就是爲什麼我更喜歡MySQLi中的代碼。 非常感謝!
你能指點一下代碼行哪裏認爲「逗號分隔值」被寫入文件? (修辭問題:一個簡單的csv行看起來像'34,John Doe',而你的代碼打印出像'id:34 - Name:John Doe
'這樣的東西,所以至少你必須告訴導入應用程序使用'-'作爲分隔符;但我懷疑結果是你想要的。你可能會對http://docs.php.net/fputcsv – VolkerK
感興趣還有另一個用戶詢問如何將MySQL數據轉換成csv文件看看這裏,我確信這會讓你走上正軌:http://stackoverflow.com/questions/125113/php-code-to-convert-a-mysql-query-to-csv – Werner
在表中有這個詞由女巫分隔:,。 - ;/ –