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run code in 150+ php & hhvm versions
Bugs & Features
<?php $somevar = '20,5'; $filtered = filter_var($somevar, FILTER_SANITIZE_NUMBER_FLOAT, FILTER_FLAG_ALLOW_FRACTION); var_dump($filtered);
Output for 5.2.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
string(3) "205"
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.0.0 - 5.1.6
Fatal error: Call to undefined function filter_var() in /in/UkqZG on line 3
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: filter_var() in /in/UkqZG on line 3
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: filter_var() in /in/UkqZG on line 3
Process exited with code 255.
Output for 4.3.1
Fatal error: Call to undefined function: filter_var() in /in/UkqZG on line 3
Output for 4.3.0
Fatal error: Call to undefined function: filter_var() in /in/c5BLf on line 3