simple decimals in Neon produce very long decimals in PHP

I noticed that generated Configurator files contain different numbers on my dev station and on the server.
Anyone has any idea about why?

	dryDiscount:
		basic: 0.025		# 2.5%
	handicap:
		# if flight min is -39.9 then all HF between -40.0 and -49.0 will be trimmed to -39.9
		trimmingBracket: 9.1

server:

'dryDiscount' => [
					'basic' => 0.025000000000000001387778780781445675529539585113525390625,
				],

'handicap' => ['trimmingBracket' => 9.0999999999999996447286321199499070644378662109375],

dev machine:

'dryDiscount' => [
					'basic' => 0.025,
				],

'handicap' => ['trimmingBracket' => 9.1],