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run code in 150+ php & hhvm versions
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<?php $varToFilter = 2555; $test = filter_var($varToFilter, FILTER_SANITIZE_STRING); var_dump($test);
based on BOQQF
Output for 5.2.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
string(4) "2555"
Output for 5.0.0 - 5.1.6
Fatal error: Call to undefined function filter_var() in /in/bVsr6 on line 7
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: filter_var() in /in/bVsr6 on line 7
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: filter_var() in /in/bVsr6 on line 7
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: filter_var() in /in/bVsr6 on line 7