<?php
$server = 'localhost';
$login = 'user';
$password = 'pass';
$db = 'database';
$filename = 'output.csv';
$table = 'table';
mysql_connect($server, $login, $password);
mysql_select_db($db);
$fp = fopen($filename, "w");
$res = mysql_query("SELECT * FROM $table");
// fetch a row and write the column names out to the file
$row = mysql_fetch_assoc($res);
$line = "";
$comma = "";
foreach($row as $name => $value) {
$line .= $comma . '"' . str_replace('"', '""', $name) . '"';
$comma = ",";
}
$line .= "\n";
fputs($fp, $line);
// remove the result pointer back to the start
mysql_data_seek($res, 0);
// and loop through the actual data
while($row = mysql_fetch_assoc($res)) {
$line = "";
$comma = "";
foreach($row as $value) {
$line .= $comma . '"' . str_replace('"', '""', $value) . '"';
$comma = ",";
}
$line .= "\n";
fputs($fp, $line);
}
fclose($fp);
?>
我正在尝试将数据从Joomla网站导入CSV文件。使用Joomla扩展创建了如此多的数据库表,这使我的情况变得更加复杂。
我已经尝试了上面的代码,它给了我想要的初始结果,即创建一个包含来自一个数据库表的数据的CSV文件。现在,我想弄清楚的是如何创建相同的文件;但我从不同但相关的表中获取数据。
情况如下:
我将如何做到这一点?
$table1 = 'database_table1';
$table2 = 'database_table2';
$table3 = 'database_table3';
$table4 = 'database_table4';
$res = mysql_query("SELECT table1_field1, table1_field2 FROM $table1 t1
INNER JOIN $table3 t3 table2_field1, table2_field2, table2_field3, table2_field4 ON t1.id = t3.pid
INNER JOIN $table2 t2 table3_field1, table3_field2, table3_field3, table3_field4, table3_field5 ON t1.id = t2.content_id
INNER JOIN $table4 t4 table4_field1, table4_field2 ON t3.id = t4.review_id
");
答案 0 :(得分:1)
只需从以下位置更新您的sql语句:
$res = mysql_query("SELECT * FROM $table");
类似
$res = mysql_query("SELECT t1.title, t1.introtext,t2.jr_street, t2.jr_city, t2.jr_state, t2.jr_postalcode, t2.jr_country,t3.created, t3.name, t3.title, t3.comments, t4.rating_sum, t4.ratings_qty FROM $table1 t1
INNER JOIN $table2 t2 ON t1.id = t2.content_id
INNER JOIN $table3 t3 ON t1.id = t3.pid
INNER JOIN $table4 t4 ON t1.id = t4.review_id
");
确保ID正确映射。