php mysql compare values -

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I have a mysql database called gpsstracking. There are some tables in this database: position and device.

What is the problem In the table condition, we have a line named device_id.

On the table device we have a line named ID.

On the table device we have a line named

Device_ID and ID rows are identical IDs, they are indicated to get names. My problem is that, when comparing 2 IP rows, something to get a loop or name in PHP.

Example: 

  device_id line: 1 2 3 4 5 ID line: 1 January 2 Class 3 pt

So if I When the device receives information from the device, I want the script to get the name from device_id, from the Device_ID line.

Can anyone help me?

You mean: 

  select from posts * Include equipment on position. Device_id = devices.id

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