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@ 2020-02-11T06:40:05Z

<?php

var_dump(filter_var('-1.0', FILTER_VALIDATE_INT));
var_dump(filter_var(-1.0, FILTER_VALIDATE_INT));

function validatesAsInt($number)
{
    $number = filter_var($number, FILTER_VALIDATE_INT);
    return ($number !== FALSE);
}

var_dump(validatesAsInt('-1.0'));
var_dump(validatesAsInt(-1.0));

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
filter_var: documentation ( source)

preferences:dark modelive previewkey bindings

26.79 ms | 405 KiB | 5 Q