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@ 2015-09-30T08:47:24Z

<?php

$float = array(
    12.5,
    12.000000001,
    12.00000,
    12,
    12.41757445,
    12.071774
    );

foreach ($float as $i) {
    
    if (false === preg_match('/\d+.[^1-9]+/', $i)) {
        echo $i . PHP_EOL;
        echo round($i) . " match" . PHP_EOL;
    }
}

Output
Performance
VLD
References
Branches

preg_match: documentation ( source)
round: documentation ( source)

preferences:dark modelive preview

50.1 ms | 402 KiB | 5 Q