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<?php $input = <<< JSON { "key1": "value1", "key2": "value2", "key3": "value3", "key4": "value4" } JSON; echo array_values(json_decode($input, true))[0];
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
value1
Output for 4.4.3 - 4.4.9, 5.1.0 - 5.1.1, 5.1.3 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[', expecting ',' or ';' in /in/jgXlI on line 12
Process exited with code 255.
Output for 4.4.2, 5.1.2
Parse error: syntax error, unexpected '[', expecting ',' or ';' in /in/jgXlI on line 13
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[', expecting ',' or ';' in /in/jgXlI on line 12
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `','' or `';'' in /in/jgXlI on line 12
Process exited with code 255.

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