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FILTER_VALIDATE_FLOAT constant in PHP
The FILTER_VALIDATE_FLOAT constant validates a value as a float number.
Return
The FILTER_VALIDATE_FLOAT constant does not return anything.
Example
<?php $var = 291.9; var_dump(filter_var($var, FILTER_VALIDATE_FLOAT)); ?>
Output
The following is the output.
float(291.9)
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