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<?php $json='{"http://ecx.images-amazon.com/images/I/51Lg%2Bd4cqRL._SX355_.jpg":[355,266],"http://ecx.images-amazon.com/images/I/51Lg%2Bd4cqRL._SX425_.jpg":[425,319],"http://ecx.images-amazon.com/images/I/51Lg%2Bd4cqRL._SX466_.jpg":[466,350],"http://ecx.images-amazon.com/images/I/51Lg%2Bd4cqRL._SX450_.jpg":[450,338],"http://ecx.images-amazon.com/images/I/51Lg%2Bd4cqRL.jpg":[500,375]}'; echo(implode("\n", array_keys(json_decode($json, TRUE))));
Output for 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
http://ecx.images-amazon.com/images/I/51Lg%2Bd4cqRL._SX355_.jpg http://ecx.images-amazon.com/images/I/51Lg%2Bd4cqRL._SX425_.jpg http://ecx.images-amazon.com/images/I/51Lg%2Bd4cqRL._SX466_.jpg http://ecx.images-amazon.com/images/I/51Lg%2Bd4cqRL._SX450_.jpg http://ecx.images-amazon.com/images/I/51Lg%2Bd4cqRL.jpg
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
Fatal error: Call to undefined function json_decode() in /in/O9bIo 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/O9bIo on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
Fatal error: Call to undefined function: json_decode() in /in/O9bIo 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/O9bIo on line 5

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