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run code in 150+ php & hhvm versions
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<?php var_dump(unpack('l*', pack('l*', 12, 12412, 1234512, 2352)));
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.13.2, 7.0.0 - 7.1.0
array(4) { [1]=> int(12) [2]=> int(12412) [3]=> int(1234512) [4]=> int(2352) }