Description:
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I discovered tha jason_decode can't decode 0e+1. Is this a Bug or a Feature?

Test script:
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Works:

print_r(json_decode('{"var":0.e+1}'));
print_r(json_decode('{"var":0.e-1}'));
print_r(json_decode('{"var":0.0e+1}'));
print_r(json_decode('{"var":0.0e-1}'));

Will not Work:

print_r(json_decode('{"var":0e+1}'));
print_r(json_decode('{"var":0e-1}'));

Expected result:
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Every line should return:

stdClass Object ( [var] => 0 )

Actual result:
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The last two lines return nothing.