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<?php parse_str(parse_url($_SERVER['HTTP_REFERER'], ph), $queries); echo $queries['ph'];
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
Warning: Undefined array key "HTTP_REFERER" in /in/2pW0q on line 2 Fatal error: Uncaught Error: Undefined constant "ph" in /in/2pW0q:2 Stack trace: #0 {main} thrown in /in/2pW0q on line 2
Process exited with code 255.
Output for 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined index: HTTP_REFERER in /in/2pW0q on line 2 Warning: Use of undefined constant ph - assumed 'ph' (this will throw an Error in a future version of PHP) in /in/2pW0q on line 2 Warning: parse_url() expects parameter 2 to be int, string given in /in/2pW0q on line 2 Notice: Undefined index: ph in /in/2pW0q on line 3
Output for 7.3.32 - 7.3.33
Warning: Use of undefined constant ph - assumed 'ph' (this will throw an Error in a future version of PHP) in /in/2pW0q on line 2 Warning: parse_url() expects parameter 2 to be int, string given in /in/2pW0q on line 2
Output for 7.2.0 - 7.2.33
Notice: Undefined index: HTTP_REFERER in /in/2pW0q on line 2 Warning: Use of undefined constant ph - assumed 'ph' (this will throw an Error in a future version of PHP) in /in/2pW0q on line 2 Warning: parse_url() expects parameter 2 to be integer, string given in /in/2pW0q on line 2 Notice: Undefined index: ph in /in/2pW0q on line 3
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33
Notice: Undefined index: HTTP_REFERER in /in/2pW0q on line 2 Notice: Use of undefined constant ph - assumed 'ph' in /in/2pW0q on line 2 Warning: parse_url() expects parameter 2 to be integer, string given in /in/2pW0q on line 2 Notice: Undefined index: ph in /in/2pW0q on line 3
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Notice: Undefined index: HTTP_REFERER in /in/2pW0q on line 2 Notice: Use of undefined constant ph - assumed 'ph' in /in/2pW0q on line 2 Warning: parse_url() expects parameter 2 to be long, string given in /in/2pW0q on line 2 Notice: Undefined index: ph in /in/2pW0q on line 3
Output for 5.1.2 - 5.1.6, 5.2.0 - 5.2.17
Notice: Undefined index: HTTP_REFERER in /in/2pW0q on line 2 Notice: Use of undefined constant ph - assumed 'ph' in /in/2pW0q on line 2 Warning: parse_url() expects parameter 2 to be long, string given in /in/2pW0q on line 2 Notice: Undefined index: ph in /in/2pW0q on line 3
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.1
Notice: Undefined index: HTTP_REFERER in /in/2pW0q on line 2 Notice: Use of undefined constant ph - assumed 'ph' in /in/2pW0q on line 2 Warning: parse_url() expects exactly 1 parameter, 2 given in /in/2pW0q on line 2 Notice: Undefined index: ph in /in/2pW0q on line 3

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