- var_dump: documentation ( source)
- json_decode: documentation ( source)
<?php
// Works:
var_dump(json_decode('{"var":0.e+1}'));
var_dump(json_decode('{"var":0.e-1}'));
var_dump(json_decode('{"var":0.0e+1}'));
var_dump(json_decode('{"var":0.0e-1}'));
// Will not Work:
var_dump(json_decode('{"var":0e+1}'));
var_dump(json_decode('{"var":0e-1}'));