Read the excel data and inserting in below format - php

Question

I have data in excel sheet which looks like below.
I have to read the data(i'll try csv format, please suggest otherwise). Using PHP to read data...
Create two tables, hopefully like below.
1.
2.
I am expecting ExtJs tree like this.
I am having trouble in step 1. How shall I read my excel sheet, csv file so that database is updated like table 1

Answer 1

Here's a solution, though I did not maintain the same Data_Id's as you did (you seem to increment the id by depth and node, but I just used the row number).
<?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();

Answer 2

something like
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);
}
}
}
}
Should give you the data structures. You may use SQL inserts rather than the $data and $tree arrays.