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@ 2014-10-21T13:54:39Z

<?php

$foo = (float) (PHP_INT_MAX );

$foo *= 2;

ini_set('precision', 64);

if ($foo == 1.844674407371E+19) {
    echo "true";
}
else {
   echo "$foo != 1.844674407371E+19";
}

Output
Performance
VLD
References
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ini_set: documentation ( source)

preferences:dark modelive preview

32.3 ms | 402 KiB | 5 Q