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<?php $original = [ CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1 ]; $update = [ CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_2_0 ]; var_dump($original, $update, $original += $update, array_replace($original, $update));
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught Error: Undefined constant "CURLOPT_HTTP_VERSION" in /in/ZUIIt:4 Stack trace: #0 {main} thrown in /in/ZUIIt on line 4
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: Use of undefined constant CURLOPT_HTTP_VERSION - assumed 'CURLOPT_HTTP_VERSION' (this will throw an Error in a future version of PHP) in /in/ZUIIt on line 4 Warning: Use of undefined constant CURL_HTTP_VERSION_1_1 - assumed 'CURL_HTTP_VERSION_1_1' (this will throw an Error in a future version of PHP) in /in/ZUIIt on line 4 Warning: Use of undefined constant CURLOPT_HTTP_VERSION - assumed 'CURLOPT_HTTP_VERSION' (this will throw an Error in a future version of PHP) in /in/ZUIIt on line 8 Warning: Use of undefined constant CURL_HTTP_VERSION_2_0 - assumed 'CURL_HTTP_VERSION_2_0' (this will throw an Error in a future version of PHP) in /in/ZUIIt on line 8 array(1) { ["CURLOPT_HTTP_VERSION"]=> string(21) "CURL_HTTP_VERSION_1_1" } array(1) { ["CURLOPT_HTTP_VERSION"]=> string(21) "CURL_HTTP_VERSION_2_0" } array(1) { ["CURLOPT_HTTP_VERSION"]=> string(21) "CURL_HTTP_VERSION_1_1" } array(1) { ["CURLOPT_HTTP_VERSION"]=> string(21) "CURL_HTTP_VERSION_2_0" }
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33
Notice: Use of undefined constant CURLOPT_HTTP_VERSION - assumed 'CURLOPT_HTTP_VERSION' in /in/ZUIIt on line 4 Notice: Use of undefined constant CURL_HTTP_VERSION_1_1 - assumed 'CURL_HTTP_VERSION_1_1' in /in/ZUIIt on line 4 Notice: Use of undefined constant CURLOPT_HTTP_VERSION - assumed 'CURLOPT_HTTP_VERSION' in /in/ZUIIt on line 8 Notice: Use of undefined constant CURL_HTTP_VERSION_2_0 - assumed 'CURL_HTTP_VERSION_2_0' in /in/ZUIIt on line 8 array(1) { ["CURLOPT_HTTP_VERSION"]=> string(21) "CURL_HTTP_VERSION_1_1" } array(1) { ["CURLOPT_HTTP_VERSION"]=> string(21) "CURL_HTTP_VERSION_2_0" } array(1) { ["CURLOPT_HTTP_VERSION"]=> string(21) "CURL_HTTP_VERSION_1_1" } array(1) { ["CURLOPT_HTTP_VERSION"]=> string(21) "CURL_HTTP_VERSION_2_0" }
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Notice: Use of undefined constant CURLOPT_HTTP_VERSION - assumed 'CURLOPT_HTTP_VERSION' in /in/ZUIIt on line 4 Notice: Use of undefined constant CURL_HTTP_VERSION_1_1 - assumed 'CURL_HTTP_VERSION_1_1' in /in/ZUIIt on line 5 Notice: Use of undefined constant CURLOPT_HTTP_VERSION - assumed 'CURLOPT_HTTP_VERSION' in /in/ZUIIt on line 8 Notice: Use of undefined constant CURL_HTTP_VERSION_2_0 - assumed 'CURL_HTTP_VERSION_2_0' in /in/ZUIIt on line 9 array(1) { ["CURLOPT_HTTP_VERSION"]=> string(21) "CURL_HTTP_VERSION_1_1" } array(1) { ["CURLOPT_HTTP_VERSION"]=> string(21) "CURL_HTTP_VERSION_2_0" } array(1) { ["CURLOPT_HTTP_VERSION"]=> string(21) "CURL_HTTP_VERSION_1_1" } array(1) { ["CURLOPT_HTTP_VERSION"]=> string(21) "CURL_HTTP_VERSION_2_0" }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/ZUIIt on line 3
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 '[' in /in/ZUIIt on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/ZUIIt on line 3
Process exited with code 255.

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