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run code in 150+ php & hhvm versions
Bugs & Features
<?php var_dump(filter_var(1456165, FILTER_VALIDATE_FLOAT)); var_dump(filter_var('1456165', FILTER_VALIDATE_FLOAT)); var_dump(filter_var('.1456165', FILTER_VALIDATE_FLOAT)); var_dump(filter_var('0.1456165', FILTER_VALIDATE_FLOAT)); var_dump(filter_var('145.6165', FILTER_VALIDATE_FLOAT)); var_dump(filter_var('bolha', FILTER_VALIDATE_FLOAT)); var_dump(filter_var('516.46.00', FILTER_VALIDATE_FLOAT)); var_dump(filter_var('516.46.32', FILTER_VALIDATE_FLOAT)); var_dump(filter_var('51646.00', FILTER_VALIDATE_FLOAT)); ?>
Output for 5.2.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
float(1456165) float(1456165) float(0.1456165) float(0.1456165) float(145.6165) bool(false) bool(false) bool(false) float(51646)
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/4sIvK on line 2
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: filter_var() in /in/4sIvK on line 2
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: filter_var() in /in/4sIvK on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: filter_var() in /in/4sIvK on line 2