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<?php $roots = array('/www/dev/sites/www.fred-4.com', '/www/dev/sites/www.fred-4.com-master'); foreach ($roots as $root) { $key = substr($root, strpos($root, '.com'), 0, 1); echo $root . " -> " . $key . PHP_EOL; }
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 ArgumentCountError: substr() expects at most 3 arguments, 4 given in /in/lSQXu:8 Stack trace: #0 /in/lSQXu(8): substr('/www/dev/sites/...', 25, 0, 1) #1 {main} thrown in /in/lSQXu on line 8
Process exited with code 255.
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33
Warning: substr() expects at most 3 parameters, 4 given in /in/lSQXu on line 8 /www/dev/sites/www.fred-4.com -> Warning: substr() expects at most 3 parameters, 4 given in /in/lSQXu on line 8 /www/dev/sites/www.fred-4.com-master ->
Output for 4.3.10 - 4.3.11, 4.4.0 - 4.4.9, 5.0.2 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Warning: Wrong parameter count for substr() in /in/lSQXu on line 8 /www/dev/sites/www.fred-4.com -> Warning: Wrong parameter count for substr() in /in/lSQXu on line 8 /www/dev/sites/www.fred-4.com-master ->
Output for 4.3.0 - 4.3.9, 5.0.0 - 5.0.1
Warning: Wrong parameter count for substr() in /in/lSQXu on line 8 Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/lSQXu on line 9 /www/dev/sites/www.fred-4.com -> PHP_EOL Warning: Wrong parameter count for substr() in /in/lSQXu on line 8 Notice: Use of undefined constant PHP_EOL - assumed 'PHP_EOL' in /in/lSQXu on line 9 /www/dev/sites/www.fred-4.com-master -> PHP_EOL

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