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run code in 200+ php & hhvm versions
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<?php ini_set('display_errors',"2\"\r\n"); var_dump(ini_get('display_errors'));
based on mqBIB
Output for 4.3.0, 5.4.35 - 7.2.0
string(4) "2" "
Output for 4.3.5 - 5.4.34
Warning: ini_set() has been disabled for security reasons in /in/m6agh on line 3 string(1) "1"
Output for 4.3.1 - 4.3.4
Warning: ini_set,pcntl_fork() has been disabled for security reasons in /in/m6agh on line 3 string(1) "1"