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run code in 150+ php & hhvm versions
Bugs & Features
<?php error_reporting(E_ALL); ini_set(display_errors, true); $str = "index.php?id=" + 1; var_dump($str);
Output for 7.1.0
Notice: Use of undefined constant display_errors - assumed 'display_errors' in /in/htHB1 on line 3 Warning: A non-numeric value encountered in /in/htHB1 on line 4 int(1)
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.13.2, 7.0.0 - 7.0.14
Notice: Use of undefined constant display_errors - assumed 'display_errors' in /in/htHB1 on line 3 int(1)