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run code in 200+ php & hhvm versions
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<?php $json = '{"1850":1,"1851":2,"1853":3,"1854":4,"1855":5}'; var_dump(json_decode($json));
based on dZ3Qi
Output for 5.2.0 - 7.2.0
object(stdClass)#1 (5) { ["1850"]=> int(1) ["1851"]=> int(2) ["1853"]=> int(3) ["1854"]=> int(4) ["1855"]=> int(5) }
Output for 5.0.0 - 5.1.6
Fatal error: Call to undefined function json_decode() in /in/XCamu on line 5
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: json_decode() in /in/XCamu on line 5
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: json_decode() in /in/XCamu on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: json_decode() in /in/XCamu on line 5