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@ 2017-08-03T03:11:13Z

<?php

$inputs = [
    -1, "-1", -0.9, "-0.9", 0, "0", 0.0, "0.0", .9, ".9", 1, "1.0", 1.1, "1.1", 2, "2",    
];
    
foreach ($inputs as $input) {
    $ok = filter_var($input, FILTER_VALIDATE_INT, [ 'options' => [ 'min_range' => 1, 'max_range' => PHP_INT_MAX ]]);
    var_dump([ $input, $ok ]);
}

Output
Performance
VLD
References
Branches

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

preferences:dark modelive previewkey bindings

29.64 ms | 405 KiB | 5 Q