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Shikiryu 2019-10-21 09:26:16 +02:00
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# PHP XML Database Class
> The goal of this project is to get a PHP class managing a database in XML format as it would be in MySQL (but with less options obviously)
-----
## Database Format
```xml
<?xml version="1.0" encoding="utf-8"?>
<Database>
<table name="table1">
<item id="clock">
<visibility>false</visibility>
<x>950</x>
<y>42</y>
</item>
<item id="weather">
<visibility>true</visibility>
<city>Paris</city>
<x>605</x>
<y>648</y>
</item>
</table>
<table name="table2">
<item id="clockAdvanced">
<visibility>false</visibility>
<x>80</x>
<y>10</y>
<fontFamily>Times New Roman, serif</fontFamily>
<fontSize>20px</fontSize>
<format>%A %d %B %Y - %H:%M:%S</format>
<color>#000</color>
</item>
</table>
</Database>
```
As you can see, the XML contains only one Database but an infinite (well, not that much ;) ) number of Tables with a unique name and in which you can have _items_ that could be compared to _rows_ in MySQL.
The differences are :
* In a table, you can have _items_ with different attributes as you can see in _table1_
* Attributes can't have different formats (for now). Everything is a @string@. Of course, you can convert them later.
* You can *move* items from table to table! You could even move them to a precise location into your file!
## "SQL" command syntax
[Data definition] ( like _Create Database_, _Drop Database_, _Create Table_, _Drop Table_ )
[Data manipulation] ( like _Insert_, _Delete_, _Update_, _Select_, _Move_ (experimental, only with XMLDB !) )