我在excel表中有数据,如下所示。
我必须阅读数据(我会尝试csv格式,请另行建议)。使用PHP读取数据......
创建两个表,希望如下所示。
1
2
我在第1步遇到问题。如何阅读我的Excel工作表csv文件,以便更新数据库,如表1
答案 0 :(得分:1)
这是一个解决方案,虽然我没有像你那样保持相同的Data_Id(你似乎按深度和节点增加了id,但我只是使用了行号)。
<?php
$data = <<<EOT
Eatables,,
,Fruits,
,,Apple
,,Mango
,Vegetables,
,,Tomatoes
,,Potatoes
EOT;
$mysqli = new mysqli("localhost", "username", "password", "test");
$dataInsertStatement = $mysqli->prepare("INSERT INTO Data (Data_Id, Data_Value) VALUES (?, ?)");
$treeInsertStatement = $mysqli->prepare("INSERT INTO Tree (parent_id, child_id) VALUES (?, ?)");
$lines = explode("\n", $data);
$path = array();
foreach ($lines as $rowNum => $line) {
// convert line of csv to array
$row = str_getcsv($line);
// loop through the row's fields and find the one that's not empty
foreach ($row as $column => $value) {
if (!empty($value)) {
// use row number + 1 as $Data_Id
$Data_Id = $rowNum + 1;
// track our depth in the tree
$path[$column] = $Data_Id;
// insert the data
$dataInsertStatement->bind_param('is', $Data_Id, $value);
$dataInsertStatement->execute();
// check if this node has a parent
if (isset($path[$column - 1])) {
// connect this node to its parent in the tree
$treeInsertStatement->bind_param('ii', $path[$column - 1], $Data_Id);
$treeInsertStatement->execute();
}
continue;
}
}
}
$mysqli->close();
答案 1 :(得分:1)
类似
lastvalues=array(); // To hold the last value on each level
data=array();
foreach($lines as $i=>$line){
elems=explode(',',$line);
foreach($elems as $n=>$e){
if($e>''){
$data[$i]=$e;
lastvalues[$n]=$i;
if($n){ // makes no sense for 0th level
$tree[]=array('parent'=>$lastvalues[$n-1],child=>$i);
}
}
}
}
应该为您提供数据结构。您可以使用SQL插入而不是$ data和$ tree数组。